The iPhone You Tube Application lets you browse and view videos at the popular video sharing site YouTube.com. You can do this several ways: by using the Featured and Most Viewed lists, searching or viewing your video bookmarks or history. You can select from these options at the bottom of the screen. Press More to see other options, such as the Most Recently uploaded video, Top Rated videos. and your viewing history.
The other screens show a similar list of videos. When viewing a video, you can tap the screen to see a timeline and some playback controls. These controls also have a bookmark button on the left and an email button on the right. Just tap the bookmark button to add the video to your bookmarks. The email button will open up the email application and allow you to send an email with a link to the video.
After you have bookmarked a video, you can go to the Bookmarks screen to see them. There, you can delete videos with the Edit button and view information about them by clicking on the blue arrow button to the right. Clicking on any other part of the listing will play the video.