You might have been using your computer to upload some of the videos to Youtube. However with the iPhone 4 it comes with the app that you could upload the video directly from your iPhone 4. This is really great when you have captured a great video and you want to upload it first so that everyone can see it. It is best that you connected to a Wi-Fi first before try these steps. Here's how:

1. Locate on your device the video you would like to upload.

2. Then tap on the upload icon  .

3. Now tap on Send to YouTube.

4. At this stage you will need to login Youtube with your account information.

5. Fill in the necessary information such as Description, Tags, Title and the Category it should belong to.

6. Finally Select Publish to begin.

Shortly when it finishes everyone can see the new video.