Filed under: iPhoneYesterday when we posted that iMovie for iPhone 4 was available on the App Store, we mentioned an important limitation on the resolution of the videos you can share with the iPhone. An Apple support document specifies that while iMovie can export a full 720p HD video if you send the video via email or import it back to iPhoto, movies uploaded from YouTube, MMS or MobileMe Gallery will be downsized to a maximum res
