At last here is the latest update . Not much really in this one mainly some minor ui changes:

1) AP details are properly cleared and only displayed once an AP has been selected.
2) Scan button only activates when Monitor Mode is enabled.
3) Deauthentication button added to Access Point Tab with basic deauth functionality (ie. no client deauth yet ). (This one is for @Trine)

As per usual, make a back-up copy of the files to be replaced, copy the archive to the FAS directory on your N900 and extract with-in xterm in the FAS directory:

tar -xzvf faircrack0.42.tar.gz

Enjoy

Note: Most of the attacks on the Access Point Screen work better once capturing packets. So just hit the buttons top to bottom (ie. cap packets, auth, deauth, inject).

PS: APs with spaces in names are working in this version, my test AP is WEP with a space in it.

Note 2: Install version 0.3 from post no 1 in this thread, then apply my update.