I would recommend the solar powered Logitech keyboard [1] as it means one less thing to worry about charging. Does anybody know of a solar powered trackpad?
I didn't know Android supported standard mice. How does that work exactly, do you get a regular cursor or what? I'm guessing you can't use that for standard control gestures?
With a regular mouse you get a cursor. Many features work with drag-and-drop.
With the magic trackpad you can also do gestures like two-finger swipes and pinching