"As most of us have been out enjoying the sun, Qik's developers have been working day and night to bring you the world’s first live video streaming application for the Apple iPhone 3G! From the wonderful feedback we get from our fans, we know how eager you all are to get streaming on the iPhone and therefore we have decided to launch straight into public beta"
1) This will only work on jailbroken iPhone devices.
2) The issue of iPhone 3G battery life draining quickly by streaming on 3G network.
3) The quality isn't expected to be as good on the iPhone since it uses software compression, where on Nokia phones there’s hardware support for that.
4) The camera isn’t as good as the Nokia camera, particularly in low light.
So if you are interested in jailbreaking your iPhone 2.0 to run Qik, here's Lifehacker's instructions on how to do it using the PwnageTool: