The Everyplay Unity SDK by Everyplay allows integration in iOS devices. References include how to configure Everyplay and how to record with Everyplay. Settings allow project customization, while the initialization process permits recording support, control session recording, handle a recorded session, render a video thumbnail, and interact with Everyplay service. The Unity SDK is also available for Android.
Sure, YouTube gets all the press. And YouTube gets most of the mashups. But when it comes to video APIs, there's a lot more than just YouTube. In fact, there are 100 video APIs, from live content Ustream to micro-vlogging 12 seconds.