If Handy can't / won't be ported for the N900, there is also Mednafen, which is a command line emulator for multiple game systems (including the Lynx) and has a GTK frontend written in python called mfe.

http://mednafen.sourceforge.net/

http://mednafenfe.sourceforge.net/

That's what I usually use to play Lynx games, because for a long time there weren't a version of Handy/SDL that I could get to work.

slaapliedje