I'm doing research in OO reengineering and I use Smalltalk (VW) for building my tools. I'm teaching Smalltalk at University of Berne. And I love Smalltalk because for me this is like a wonderful object-oriented Scheme written in itself with its own environment written in itself. Really cool.
I was looking at Squeak periodically since v1.23 but now after the demo of Dan at OOPSLA I will dive into it. My wife should teach computer science, so we will have fun with Squeak. I'm starting to implement an extension of Pen (a Turtle) where the 0 direction and the turn: use the mathematical concept (0 = x axis and turning being trigonometry sense).
My contribution to the community is: teaching smalltalk even for free, seeding seed as much as I can, participating to ESUG http://www.esug.org/ and SSUG http://www.iam.unibe.ch/~scg/cgi-bin/Smalltalk.cgi , then helping that good books on Smalltalk get publish. I'm currently reviewing several on them.
Contact me if you cannot find an editor for a good book.