I ran across this new app at CTIA 2011 in Orlando. Gogobeans is a new file-sharing and storage system that lets you share content by shaking your device. They call each item you want to share (whether it's a line of text or a full-legth movie) a "bean," and each bean is the same size. The content always stays with you, and when you "share" it, you're only giving others access to it through the secure Gogobeans interphase, called "lockers."
The file storage feature is very similar to dropbox.com, but with an added sharing feature (called "bouncing"). The sharing feature allows you to send files to anyone by shaking two devices together ("Shake to bounce"). One user shakes the device to send the file, the other user shakes to accept it. Here's the cool part: the devices don't have to be next to each other, in fact, they can be in complete opposite parts of the world!
This "shake to bounce" feature is ready but not yet avaibale in the current version of the app in the App store. The new release of the app is coming soon, so stay tuned for it.
Here's a short video summarizing the features: