I got a chance to play with a G2 yesterday (loved it), but the hinge was severely jacked up. It was so loose that handling it even the lightest manner caused jigglin and such. I'm not sure if it was like that out of the box though, I kind of got the feeling it may have been worn down from constant usage. Honestly I don't know. So I was just curious to see if the z-hinge can wear down after extensive use.