Snapcuts, the Pasadena-based startup which develops a mobile video app of the same name which lets users mix and match videos to create personalized video greeting cards, has just released an update to the app, which lets users upload their own videos. According to the company, the new, user generated content capability lets users upload their own video clips, which they can mix with the app's library of existing content. SnapCuts lets users mix and match all kinds of videos to create greeting cards, which can be sent to a user's friends and family. Previously, the app only allowed users to pick from pre-supplied video clips, gathered from movies and elsewhere. The app runs on iPhone, iPod, and iPad devices.