Sprint gave me a refurb 650 to replace the one I had with a bad headset jack. Right away I noticed the keyboard felt diff. The screen had more noticable picels. And the camera has a red gem looking lens instead of the black hole in my old one. I did have one of the original 650s. I knew they changed the keyboard to fix the sticking keys and other claimed a brighter screen on the Rev B but I did not hear about a new camera.