leaked promo material for the $499.99 WiFi-only Samsung Galaxy Tab headed to Best Buy? Well, SKU 1409447 of the 7-inch Android tablet is being promoted right now in the weekly ads on Best Buy's very own mobile site. Unfortunately, our urge to celebrate is tempered by a sneaky pic of a Best Buy "pullback" (found after the break) noting that the WiFi-only Galaxy Tab is not in fact available due to manufacturer delay. The whole Best Buy listing turns out to be an unhappy comedy of errors showing a non-existent "silver" 3G model on Sprint and wishful "Super AMOLED" display. Ugh.