There's a lot of signs pointing to the release of a brand new iPad floating around these days: myriad rumors, retina displays, and even Apple event invites. Now, a freshly taken pic from an anonymous tipster has given us a little more grease for the iPad 3 rumor mill. As you can see above, starting today all iPad 2 SKUs at Radio Shack are getting $20-50 lopped off their prices, which sure seems like a good way to clear out stock to make room for a newer, pricier version. And, the good news for Apple fans doesn't stop there, as the Shack will also be discounting the iPhone 4 and 4S by $25 from March 1st - 4th. So, is this more evidence of the iPad 3, or just a retailer trying to move more product? We'll know for sure next week.