re: Having an iPhone app made

iPhone coding sucks arse. Actually, I hear it is better now that Apple quit rejecting any apps written in a reasonable language instead of object c. You can thank android for that one.

Your app doesn't sound that difficult to write, it's basically a gui around a video/audio stream. I'd give it a shot myself before hiring someone to do it. The biggest key is using the right language, and I can't really offer much advice with that... other than shun object c.