sry, it needs to be plugged inI would totally love to get this for my iPod Touch, with the docking cradle of course. Pretty much the only big thing I want to know is, do you need to have the dock plugged in to power (via the cigarette lighter, or I guess a mains power adapter) for it to work, or can it either run off the iPod/iPhone battery, or its own battery? ie. can you take it walking around? I'll be very disappointed if the dock needs to be plugged in to function....