[Wyatt]

http://www.picnik.com/

This is the most impressive Web application I've seen in a long time. It's not as robust as something like Photoshop, but it allows you to do basic global photo manipulation through your Web browser.

I might have to shoot some new stuff soon so I can play with this. I played with their example images a bit, and I was very impressed. It should be interesting to see how it performs with uploaded pictures.