Look homo don't hi jack my post. Stop winning about the "no support from Nokia". This is not a Nokia forum go wine on their web forum.
Sell your nokia 770 if you don't like it. Microsoft blows. The nokia 770
is for us linux guys that like to tinker. I don't mean to be too hard on you but I noticed this is the second time your posting about this topic and your doing it on my post. Listen what version of OS are you running? second what version of maemo-mapper are you trying to install. I installed from the GUI application installer after adding the needed repo. and all the deps were fine.