Has anyone noticed this and tried it. An app for the iPhone called "Airsharing" is free on the App Store now. It mounts your iPhone as a network drive in finder, allowing you to copy files to your iPhone, and open them with the iPhone. I noticed that the iPhone network drive shows up in Time Machine as a viable backup disc when using it. Has anyone tried this app with Time Machine to see if it works? If you could do this then you could always have documents and such from your computer available, and in a sense sync them when you mount the drive. Of course, due to the memory constraints, this would only be for people with very little on their computer, or who want to only backup documents and small stuff. But with the 32 GB iPod Touch with apps, the iPod Touch wouldn't be a bad thing to use then. My TM backup is less than 25 GB (excluding music). And in TM you can just exclude your movie and music files from the backup. You can always use a program like Senuti to get the music off you iPhone if you ever need to (I've done it). The only problem is the time it takes. On my PB, Airsharing downloads to the iPhone at about 500 KB per sec, so the first TM backup would take a long time. But for a backup I keep with me all the time, I would be willing to do this, if I could. The other problem is security if someone ever swipes your iPhone. Edit: It may only show up in TM because of all of the hacking I went through to try to get TM to work over the network a couple months back. If so, then I'll see what I can do to find out what I did when I get off work.