Which means buy one soon!
I don't have an iPhone, but I have read that the Flip's quality isn't as good. However I bought one and use it to record my lectures. 60-90 minutes long and indoor lighting. It works fine and my writing on the white board comes out clear.
What is nice about it is that it is trivially easy to use (in my case I even screw it on to a small tripod) and extracting the videos and recharging are easy as well. It's a camera I don't have to think about, which is great for my application.
I hate to see them go as I know that any replacement camera will cost me much more. I might actually run out and buy another as a "spare".