Android Beam has been around since 4.0, but the NFC sharing tool has always been a little awkward (I think I've used it successfully twice in three years), since it relies on both phones physically detecting each other in proximity before you can even initiate the sending process. In the preview versions of the "L" release, Beam finally gets its own dedicated option in the standard Android Share menu, which should make it much less ambiguous.
A new update to Google+ is currently rolling out, and when it hits your device, not only will it bring along the usual bug fixes and performance increases, it will contain a number of new features. The Photos app now supports Android Beam, so two Android owners can share images with one another over NFC. There is also the new option to set images within Photos as a Daydream that plays whenever a device is docked.
Everyone has been making a big deal about NFC lately - which phones have it, where it can be used, etc. Until last night's announcement, many (including myself) didn't see much on the horizon except a fun way to pay for things using your phone. That perception has changed, however, thanks to Android Beam.
Beam utilizes NFC technology to quickly, seamlessly transfer data from one device to another. As demonstrated last night, one has only to touch the two devices together to send just about anything from web pages, to photos, to apps.