i just bought a new iBook G4 and i'm wondering if anyone has tips on extending the battery life. with previous computers, i would keep the battery out while i had it plugged in, which seemed to help lengthen its life. this isn't really an option with the way the iBook battery is installed. do most people just work with their iBooks continuosly plugged in? or would be it better to treat it like other portable electronics - charging the battery to full, using it unplugged all the time, and recharging when the battery dies? any thoughts?