Cooliris is now available for free on the App Store for your iPhone or Ipod Touch.  This quality little app allows you to search and watch video from many sources without going to those sights such as youtube, google video, smugmug, etc.  The original Cooliris is an add on for Firefox and Safari and brings a very Mac-Like experience to browsing and watching videos.  This App is much better than the youtube app that Apple provides with the phone.  Definately check it out when you can.