Alas, I can’t personally justify to myself the need for a smartphone, but if I could, I would totally take advantage of this SmartCam project. You install a server on your machine and then extract the client on your smarphone and voila! you have your very own portable webcam.
I could see this coming in handy for video bloggers or anyone wanting to run video on the fly. This sort of thing is going to become more and more mainstream over time as smartphones like the iPhone fall into the hands of the common consumer.