I found this pretty interesting app for the iPhone: ; http://www.ononesoftware.com/detail.php?prodLine_id=38. This will allow you to remotely fire the shutter of your DSLR from your iPhone. The professional version also allows you to control various settings of your camera as well as see the picture you just took all from right on the iPhone. I can see where this would be real handy, especially for those self portraits. And the Pro version is only $19.95.