stop being soo lazy you lot :P i lost mines and just went to the nokia shop and asked for another one. They had some n900's on display and i noticed they removed the styli so i thought to myself they obviously kept it, so i went to get an extra one too haha
I use my stylus mostly to clean/scratch my ear. The N800 had this scoop shape that gets filled up, but the N900 is more pointed. Havent decided which one is best. Never lost one, but I have broken two for my P1.