Briefly, I'm reporting a number of applications that work well when called from maemo (not from inside lxde):
pdfchain - merge, split, and make other things to pdf files
flpsed - type annotations on pdf files
xournal - everybody knows it
nicotine - while waiting for the maemo5 port
gftp - ftp client
abiword and openoffice, of course, and seem quicker than when called inside lxde.

For all these, the ctrl-up arrow key combo from easy debian is fundamental.
For openoffice, also binding Esc to shift-backspace (Qole, this should go in the next easy debian imho).