The evidence for a Motorola Xoom launch on February 24th just became that bit more compelling, courtesy of this here Best Buy ad. It promises Moto's Android tablet will be in stores a couple of weeks from now, decorated with a daunting $799.99 sticker. That price agrees with one of our earliest leaks on the matter, purportedly from Verizon's own systems, so all the pieces seem to be falling into place for a pretty exciting end to February for Android fans. This flier also has some data tariffs on it, starting at $20