I just saw that Adobe has announced CS2 which includes Photoshop CS2.

Here's whats new:

http://www.adobe.com/products/photoshop/newfeatures.html

After using the new version for a while, I like it in general, and the new RAW support and scripting are an excellent improvement.

I recommend it, but wish new versions didn't come out so quickly.

I agree on both points. CS2 delivers some real benefits, particularly to RAW shooters. The spin-off of CS's browser into a separate application, Bridge, is also an excellent architectural change that enables more efficient co-processing between Bridge and CS2.

For those using CS who mainly shoot JPG the practical benefits of CS2 may be a bit slimmer and urgency of upgrade somewhat less.

It's usually the little things that I initially did not think were were such a big deal that make the upgrade worth it for me. The Warp function didn't seem like such a hot new thing to me, but it has already saved me on a job that I don't know how I would have done without it.