Since last spring we've been tracking the progress of Socialcam, the 'Instagram for Video' that spun off from Justin.tv. The app, which is available for iOS and Android, hit the 2 million download milestone at the beginning of the month, and to mark the occasion it launched a new feature that made the 'Instagram' comparison even more apt: filters. Yes, you can now overlay your videos with an array of effects (the top two are 70's and Electronica). As it turns out, people really like filters on their videos.