My car chargers for the c168i phones just came in the mail today.
They were a dollar a piece and contain all of the charging circuitry/battery saving hardware.
Not very professional looking to glue onto a circuit board, but cheap and great for hobby purposes...
Cheap phone, cheap charger, cheap micro controller.... the only expensive part of this is the GPS chip and antenna!
Anybody know of a cheap GPS product that could be cannibalized?