Google has launched a YouTube Capture app for iPhone. The app is self explanatory. You shoot some video and upload it right to YouTube. There are of course other options to post it to Facebook, Twitter, or Google+.
YouTube Capture is ready to record as soon as you open it. When you’re done filming, write a caption, select which networks you want to share to, and hit Share. Even if you minimize the app, the video will keep uploading in the background. You can control who sees your video by setting it to private (only you can view it), unlisted (only people with a link to the video can view it), or public (to let it shine to the world).