Febb
I do all my file transferring via bluetooth, and it works really well.
On the PC/MAC side, its not software that you need, its a "USB BLUETOOTH DONGLE" Plug the dongle into your PC/MAN and setup the software as directed. Then "PAIR" it to your N800. Its easy and fast, the only downside is I can only send one file at a time, unless I compres the file, send it, then uncompress it on the N800. You should also be able to send a file "FROM" your N800 to your PC/MAC.