After 4 days with a Vtab (Gingerbread, Vizio .57) and reading through forums, I think I've caught up on most of what's going on (and unfortunately, what's NOT going on) with this tablet. I have until late July to decide whether or not it's a keeper. So far, I've been postponing the update nag. One thing I'm still hazy on is SD usage under GB and how it's been changed under HC. Would someone kindly explain?