2.5 installs fine for me on the N800. I did enable red pill and some additional repos (my list): #maemo:name Nokia Catalogue #maemo:essential deb http://catalogue.tableteer.nokia.com/certified/ bora user #maemo:name Nokia Catalogue (3rd party software) deb http://catalogue.tableteer.nokia.com/non-certified/ bora user #maemo:name maemo-hackers deb http://maemo-hackers.org/apt bora main #maemo:name Maemo deb http://repository.maemo.org/ bora free non-free extras #maemo:name Maemo extras deb http://repository.maemo.org/extras/ bora free non-free #maemo:name Minimo deb http://home.ufam.edu.br/~agan/minimo mistral/ #maemo:name FBReader deb http://only.mawhrin.net/fbreader/maemo bora user As for the firefly serial to bluetooth adapter - this appears to be powered by the serial port, correct?