I've heard a few of you mention this, but I'm having trouble actually making it happen. I'm specifically trying to sideload ADW EX, since obviously it isn't possible to download/install it from the Market onto the Xoom. I've tried doing a TB backup, then saving what I thought was that apk, but I don't think I really know what I'm doing. Anybody have any tips or info to help out a dude? 