I just bit the android bullet and bought a very lightly used viewsonic gtab on Ebay from a seller with a damn good rep who's sold a lot of them. He swears they're like new and his feedback seems to suggest the people who've bought them off him are happy with them. My question here is: What OS should I root the Gtab too? I was thinking of android 3 as I hear it's good. Anyone have any views on this and what problems rooting causes? I've heard that some things don't work after a root job on a gtab, like the camera and the USB port. SAny advice?