It’s no secret that, hardware-wise, the iPhone 3G S is far superior to any of its predecessors. It’s got double the RAM , a faster processor, a built-in compass , and video recording capabilities , but did you know it can also do 1080p HD playback? Well, that’s what was this video is proof of. With the help of an app called FileAid, this iPhone 3G S’ secret ability is suddenly revealed. However, as it was noted in the video, this isn’t a perfect feature just yet for the iPhone 3G S .

We always suspected the iPhone 3GS was capable of 1080p HD video playback, and now we’ve got proof. Although Apple lists the iPhone 3Gs’s max video playback res at just 640×480, iLounge linked to Chinese forum post claiming that the 3GS could do 30Mbps 1080p playback earlier today — and when we saw that the only thing we needed to do to test it out was download the free FileAid app, well, you know how we’ve just spent the last 20 minutes.