The rumor mill has Apple announcing the long-awaited iPad 3 on Steve Jobs birthday next month, February 24—serving as a tribute to the late tech mastermind behind the most dominate tablet on the market. Though very few people have yet to catch a sneak peak of the gadget, as with every major Apple release, the anticipation has inspired a number of graphic designers to craft their own mock-ups highlighting key features and hardware specs that have prematurely surfaced online. We've even singled out the most promising in our Top Apple Rumors We Hope Come in 2012. As we approach the end of the month, we heighten our expectations of Apple's next major product announcement by checking out the Top 5 iPad Concepts We've Seen So Far.