This would be cool for making YouTube videos, on my channel I have to use a third party application to record. Maybe add a “Record” button for us to record, it will save to camera roll, and we can use it! I understand this might cause lag, but this would only cause lag WHEN recording, so if you don’t want to record nothing will change.
It would be a cool idea. For now, we have Shou, but you can also record using QuickTime player if you have an Apple Device and a Mac. Then, you can edit the video and post it to FB and YouTube, and etc.
You can record flights if you have a Mac and a lightning cord. http://www.iphonehacks.com/2015/05/how-to-record-iphone-ipad-screen-on-mac.html
Very good idea, it would also be nice for short Instagram videos, or for training purposes.