Sprint and Samsung have started rolling out the Android 2.3 Gingerbread update for the carrier’s greenest handset, the Replenish.

Sprint just unveiled the new Samsung Replenish. It is its first eco-friendly Android phone which comes with a 2.8 inch display, a QWERTY keyboard and Android 2.2 Froyo. It has a solar powered battery cover and is priced at $49.99.