There are other improvements that come with the iOS 4 besides those we mentioned. Among the iOS 4 iPhone improvements are: a new ability to change your default search engine; an option to change wallpaper for the lock screen or the home screen; multiple improvements to iPhone's spell check system.
With "My Queue" you can quickly save videos to watch later.
To add an item to your queue just click the sign next to the video.
Once you've added a video visit "My Queue" to start watching!