According to an iLounge source, the upcoming fourth generation iPod touch will be changing shapes once again. If true, it is said to be more flat than curved, with a flat surface and curved edges; much like the top of your MacBook Pro. Additionally, the back is rumored to not be modeled after the iPhone 4's all glass surface; so we're guessing stainless steel or aluminum. There is that much-awaited rear camera, though what's not clear at this point is a LED flash next to it or a second microphone for audio capture while shooting video. Lastly, that tiny, tiny Apple-branded touch screen display we saw? Well, according to iLounge, it is indeed a new iPod nano, and won't have anything to do with an iPod shuffle. September 1st is close enough, friends.