actually, I am having some problems. I tried to manually add 'http://downloads.kernelconcepts.de/maemo2 mistral free' to my wife's N770 but when I did it was unable to update the unit. I then tried to use a trick I use on the N800: I tried downloading one of the applications which automatically added the entire repo to the repo list. That did not work either. What should I do?! Should I manually edit the /etc/apt/sources.list file and then make a 'apt-get update' or is this going to screw up the GUI application?