Okay, before you dismiss Viddy just for the Instagram comparison, yes, it's true that this app will take your videos and add an "artsy" filter, but it also comes with some handy clipping, scoring, and sharing functionality. You can send your shots directly to YouTube, your choice of social network, or publish on the Viddy stream. Which, at the moment, seems to be dominated almost exclusively by 4 month old things Eliza Dushku shared. At least for me, for some reason.
Viddy also includes a selection of songs you can use to create a soundtrack for your videos, presumably royalty free.