Oh, the mysteries of the App Store approval process. MiTube, a jailbreak favorite for downloading YouTube videos directly to your iPhone, is currently available in the App Store for free. With a nice AdMob ad. How strange. Update: Poof!
Of course, it'll probably be gone before long, just like that handy flashlight app, so grab it quick fast if you're really into downloading YouTube videos, or if you just want to preserve this particular App Store approval oversight on your iPhone like a Jurassic period mosquito trapped in amber. [iTunes via 9to5Mac - Thanks Jonathan!]
Update: As expected, Apple has yanked MiTube from the App Store.