Apple Insider has unearthed proof that YouTube uploading will be built into the upcoming version of QuickTime that ships with OS X 10.6.

According to beta testers, several video-sharing options will be baked into the latest release of Apple’s QuickTime media playback and editing software, including the capability to directly upload to YouTube. With the new QuickTime, you will be able to convert and upload any supported video file type to the online video service and all you will need is to be a registered YouTube user. You also will be able to seamlessly upload supported video to the MobileMe Gallery.