One of the killer features of some camcorders on the market is exactly the ability to "pre-record". This app removes one more difference between the iPhone cam vs dedicated camcorders.
For those who record sports and kids, this is a must buy! It totally helps keeping the video clip small and filled with only highlights.
So far I had no problems with this. Works well! Look forward to more updates to make it even better!
dacheng about Precorder: Video Camera for Unforgettable Moments, v1.3