The Roku Android app has just been updated to stream video from phone to television, as recently introduced on the iPhone. As you might expect, we’re talking unencrypted content and there’s probably some limitations in terms of codec and container. Although I’d assume anything shot natively on your ‘droid would work. Initial support is limited to:
Samsung Galaxy SIII, Samsung Galaxy S4, Nexus 4, HTC One, and Nexus 7 (2012 model).