Added the extras mistral free repo to my N800 app manager, choosed the proposed maemo mapper 1.3.4 and it looks like it works perfectly. I imported my old maps (just moved my N770 RS-MMC to my N800 with an adapter) and reset my maemo mapper favourite settings. Tested with globalsat BT-359 bluetooth GPS.

gnuite, did you get a developper discount from Nokia yet?