If you're a bit tardy getting those holiday cards out, here's an app that might get you out of a jam. VideoCard is a free for a limited time and allows you to create a clever animated card to send to family and friends.
Here's how it works: You open the app, select music for your card from your library, select a cover, then an inside template. The covers are nicely animated with holiday scenes. You take a picture or a video that gets inserted at the end of the animation.
When the card is rendered, you can email it, post to Facebook, Instagram, Flickr, or send it as an SMS message. You can also save it to your camera roll.