I got some hands-on time with it at WWDC. It feels much different in your hand than the current rounded back iPhone design, but fuck is the screen gorgeous. After seeing that screen and the way type looks so smooth, all I can see is the fucking pixels on my iPhone 3GS and Nexus One.
The OS itself is very fast - a lot snappier than the 3GS, and on par with the iPad's speed (same processor anyway).
Camera takes good pics, video looks good. I didn't get a chance to play with the video calls.
You'll of course have to wait though. Canada isn't in the group of launch countries. Pre-orders are practically sold-out in the US already, and in Japan where to can't pre-order online, they've already started lining up outside the stores!!! So if you want it, pre-order it.