Nokia-N810-43-7:~# apt-cache showpkg python2.5-sip4
Package: python2.5-sip4
Versions: 
4.11-maemo0 (/var/lib/apt/lists/repository.maemo.org_extras-devel_dists_diablo_free_binary-armel_Packages)
...
Reverse Depends: 
  python2.5-qt4-common,python2.5-sip4 4.10.0
  python2.5-qt4-common,python2.5-sip4 4.10.0
  python2.5-qt4-common,python2.5-sip4 4.10.0
  python2.5-qt4-common,python2.5-sip4 4.10.0
  python2.5-qt4-common,python2.5-sip4 4.10
  python2.5-qt4-common,python2.5-sip4 4.10.0
  python2.5-qt4-common,python2.5-sip4 4.10
  python2.5-qt4-common,python2.5-sip4 4.10
  python2.5-qt4-common,python2.5-sip4 4.7.7
  python2.5-qt4-common,python2.5-sip4 4.7.7
  python2.5-sip4-dev,python2.5-sip4 4.7.7-maemo3
  python2.5-sip4-dev,python2.5-sip4 4.10-maemo20091123.0
  python2.5-sip4-dev,python2.5-sip4 4.10.3-maemo0
  python2.5-sip4-dev,python2.5-sip4 4.11-maemo0
  python2.5-qt4-common,python2.5-sip4 4.10.0
  python2.5-sip4-dev,python2.5-sip4 4.10.0
  python2.5-sip4-dev,python2.5-sip4 4.10.5-maemo0
Dependencies: 
4.11-maemo0 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libstdc++6 (2 3.4.4) python2.5 (2 2.5.1) sip (0 (null)) 
4.10.5-maemo0 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libstdc++6 (2 3.4.4) python2.5 (2 2.5.1) sip (0 (null)) 
4.10.3-maemo0 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libstdc++6 (2 3.4.4) python2.5 (2 2.5.1) sip (0 (null)) 
4.10.0 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libstdc++6 (2 3.4.4) python2.5 (2 2.5.1) sip (0 (null)) 
4.10-maemo20091123.0 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libstdc++6 (2 3.4.4) python2.5 (2 2.5.1) sip (0 (null)) 
4.7.7-maemo3 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libstdc++6 (2 3.4.4) python2.5 (2 2.5.1) sip (0 (null)) 

Nokia-N810-43-7:~# apt-cache showpkg sip
Package: sip
Versions: 
4.7.7-maemo2 (/var/lib/apt/lists/repository.maemo.org_extras-devel_dists_diablo_free_binary-armel_Packages)
 Description Language: 
                 File: /var/lib/apt/lists/repository.maemo.org_extras-devel_dists_diablo_free_binary-armel_Packages
                  MD5: 504f0ebbeeeacad59fcb3a1c9bbfd0c0


Reverse Depends: 
  sip-dev,sip 4.7.7-maemo2
  python2.5-sip4,sip
  sip4,sip
  sip4,sip
  python2.5-sip4,sip
  sip4,sip
  sip4,sip
  python2.5-sip4,sip
  python2.5-sip4,sip
  python2.5-sip4,sip
  sip4,sip
  python2.5-sip4,sip
  sip4,sip
Dependencies: 
4.7.7-maemo2 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libstdc++6 (2 3.4.4) python2.5 (2 2.5.1) 
Provides: 
4.7.7-maemo2 - 


ackage: python2.5-qt4-core
Versions: 
4.7-maemo7 (/var/lib/apt/lists/repository.maemo.org_extras_dists_diablo_free_binary-armel_Packages) (/var/lib/apt/lists/repository.maemo.org_extras-devel_dists_diablo_free_binary-armel_Packages) (/var/lib/dpkg/status)
 Description Language: 
                 File: /var/lib/apt/lists/repository.maemo.org_extras_dists_diablo_free_binary-armel_Packages
                  MD5: aa51f921e22a2e42fd2582d29aff4602
...
Dependencies: 
4.7-maemo7 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtcore4 (16 (null)) libqt4-core (2 4.5.3~git20090723) python2.5-qt4-common (5 4.7-maemo7) 
4.7-maemo6 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtcore4 (16 (null)) libqt4-core (2 4.5.3~git20090723) python2.5-qt4-common (5 4.7-maemo6) 
4.7-maemo5 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtcore4 (16 (null)) libqt4-maemo5-core (16 (null)) libqt4-core (2 4.5.3~git20090723) python2.5-qt4-common (5 4.7-maemo5) 
4.7-maemo4 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-core (16 (null)) libqt4-core (2 4.5.0) python2.5-qt4-common (5 4.7-maemo4) 
4.7-maemo3 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-core (16 (null)) libqt4-core (2 4.5.0) python2.5-qt4-common (5 4.7-maemo3) 
4.7-maemo2 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-core (16 (null)) libqt4-core (2 4.5.0) python2.5-qt4-common (5 4.7-maemo2) 
4.7-maemo1 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-core (16 (null)) libqt4-core (2 4.5.0) python2.5-qt4-common (5 4.7-maemo1) 
4.6.2-maemo20091218.1 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-core (16 (null)) libqt4-core (2 4.5.0) python2.5-qt4-common (5 4.6.2-maemo20091218.1) 
4.6.2-maemo20091123.2 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-core (16 (null)) libqt4-core (2 4.5.0) python2.5-qt4-common (5 4.6.2-maemo20091123.2) 
4.4.3-maemo10 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtcore4 (2 4.4.1) python2.5-qt4-common (5 4.4.3-maemo10) 
4.4.3-maemo9 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.4.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtcore4 (2 4.4.1) python2.5-qt4-common (5 4.4.3-maemo9) 
...


Nokia-N810-43-7:~# apt-cache showpkg python2.5-qt4-gui
Package: python2.5-qt4-gui
Versions: 
4.7-maemo7 (/var/lib/apt/lists/repository.maemo.org_extras_dists_diablo_free_binary-armel_Packages) (/var/lib/apt/lists/repository.maemo.org_extras-devel_dists_diablo_free_binary-armel_Packages) (/var/lib/dpkg/status)
 Description Language: 
                 File: /var/lib/apt/lists/repository.maemo.org_extras_dists_diablo_free_binary-armel_Packages
                  MD5: aa51f921e22a2e42fd2582d29aff4602
...
Dependencies: 
4.7-maemo7 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtgui4 (16 (null)) libqt4-gui (2 4.5.3~git20090723) python2.5-qt4-core (5 4.7-maemo7) 
4.7-maemo6 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtgui4 (16 (null)) libqt4-gui (2 4.5.3~git20090723) python2.5-qt4-core (5 4.7-maemo6) 
4.7-maemo5 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtgui4 (16 (null)) libqt4-maemo5-gui (16 (null)) libqt4-gui (2 4.5.3~git20090723) python2.5-qt4-core (5 4.7-maemo5) 
4.7-maemo4 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-gui (16 (null)) libqt4-gui (2 4.5.0) python2.5-qt4-core (5 4.7-maemo4) 
4.7-maemo3 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-gui (16 (null)) libqt4-gui (2 4.5.0) python2.5-qt4-core (5 4.7-maemo3) 
4.7-maemo2 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-gui (16 (null)) libqt4-gui (2 4.5.0) python2.5-qt4-core (5 4.7-maemo2) 
4.7-maemo1 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-gui (16 (null)) libqt4-gui (2 4.5.0) python2.5-qt4-core (5 4.7-maemo1) 
4.6.2-maemo20091218.1 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-gui (16 (null)) libqt4-gui (2 4.5.0) python2.5-qt4-core (5 4.6.2-maemo20091218.1) 
4.6.2-maemo20091123.2 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqt4-maemo5-gui (16 (null)) libqt4-gui (2 4.5.0) python2.5-qt4-core (5 4.6.2-maemo20091123.2) 
4.4.3-maemo10 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.5.0) libqtgui4 (2 4.5.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtgui4 (2 4.4.1) python2.5-qt4-core (5 4.4.3-maemo10) 
4.4.3-maemo7 - libc6 (2 2.5.0-1) libgcc1 (2 1:3.4.4) libqtcore4 (2 4.4.0) libqtgui4 (2 4.4.0) libstdc++6 (2 3.4.4) libx11-6 (0 (null)) libxext6 (0 (null)) libqtgui4 (2 4.4.1) python2.5-qt4-core (5 4.4.3-maemo7) 
...