Thanks to a tip from 'c n', these uber cheap battery grips orignally posted in this article: http://cheesycam.com/unusual-new-battery-grips-for-550d-t2i/ seem to have a slight upgrade. Originally the unit was super cheap, mainly because it still used very old battery types from the T1i. Now these sub $35.00 550D Battery grips are using the proper LE-E8 battery fit, and appears to have a slight cosmetic upgrade too. Maybe threw out the old junk and now selling an entirely new product. Either way, it's the standard model now, but looks like they kept the pricing at under $35.00 bucks (no batteries). You can find more information by clicking here: BATTERY GRIP FOR CANON EOS 550D /Rebel T2i SLR BG-E8
[Update] If the link above doesn't return any results, they sold out very quickly. Here's an updated link shared by a few readers.
Battery Grip for Canon 550D T2i with Batteries