I hate paying for an app, but I was desperate for a video app that allows switching from front/back camera DURING video - and, this app does that perfectly (you can do it in Instagram, but only for 15 sec). I dont understand why all video apps dont have this feature - especially the iPhone (get with it Apple!). I love this app and it was worth the $1.99 jumbo price-tag!
Tczig about Video Zoom Pro: HD Camera with Live Zoom, Effects, Pause, snapshot photo and Movie Sharing