iLounge’s contest for the upcoming iPad 2 Buyers’ Guide—Design The iPad 3 + iPad mini—is entering its third week, with $2,800 in prizes up for grabs. Entries have already started to arrive, and we’re excited to see more! In the contest, we’re asking you to create a brand-new artistic rendition of what Apple’s future iPads should look like, including the on-screen interface. We’ll be selecting winners…