Can I use the iPhone 4's camera via my Mac? I'd like to record some video on my MacBook Pro, which I could do using the built-in iSight except I'd like to record in HD. Rather than go out and buy a new HD video camera, is there any way of getting the Mac to recognise the iPhone 4's HD camera as an input?

Yes I know that I could just use the iPhone on its own and then transfer the video over, but I'd like to be able to see what I'm recording (without using mirrors). Have done a bit of Googling and can't see anything, so just thought I'd ask!
I've tried this, but unfortunately it doesn't work with iChat and PhotoBooth but works perfectly with Skype and other communications tools :

iWebcamera iPhone App ($4.99)