For those of you familiar with the GWT, you can do some really nice things with it. My brother, who's also a geek like me, realised that you could do some clever things with vector graphics and the GWT. Being a bit of a graphics/maths head, he threw together a little library to show just how easy it is to do powerful vector graphics without resorting to flash. You can see the post here:

Vector graphics on a website without using flash!