Source - Engadget

Soon after the rumors of a YouTube’s video rental service it has emerged that the day may not be too far before Apple starts offering streaming video through iTunes soon. iTunes’ customer survey seems to hint towards this “Titles are available to watch instantly” is listed among the survey questions which will be a refreshing change from the current method where it requires the entire video file to download before playback begins, which is a definite pain If you are using a iPad.