The Portable Office suite is nice - lots of the same stuff as on Lupo Pendrive, IIRC. I've got one 8GB drive I loaded with the newest version (several months ago) of the suite and every interesting-looking app, and ended up putting something like 5GB of apps on it. Kinda defeated the purpose, I think, but hey, USB drives are cheap these days.
I really don't use it much, though.