Because the 770 uses the same battery charger as all the other new generation Nokia phones (those from 2005/2006 onwards, such as the N-series, that...
Mind you, if you've got a printer that works directly with simple files on USB memory sticks, you can use your USB cable and use your 770's memory card just as easily. I've been having fun using a...
Well, Nokia Online Sales finally replied to me by e-mail: not only do they still not have any in stock, but Nokia hasn't given *them* a shipping date for the next batch. Online Sales suggests that...
You're quite right: the batteries are Li-Ion or Li-polymer, meaning that you should continuously top-up the charge and avoid deep cycles (completely discharging them and recharging from empty).