With Dropbox, keep important and frequently accessed home-computer files within reach wherever you are. Anything you put in the Dropbox folder on your computer will be available from within the app on your phone, so it's a great way to pocket files as you're running out the door or keep some of your favorite songs, photos and videos close at hand. You can save files from your phone too, and they'll be synchronized to your computer.
Download links: Android | iPhone
See also: LogMeIn Ignition, Splashtop