It starts. It's still registered. And it connects/syncs/browses fine (B002 prefix; latest 2.5.8 software). But it barely holds a charge. Took me 10 minutes just to remember how to restart it from the menus, and I must have tapped the screen at least 27 different times doing that much! It's like playing with one of those old LED football handheld games, but much less fun.
Anyway. I can't begin to remember how I would go about browsing the file system. If it involves installing software on a PC, I'm afraid I'm not interested.