I have just dowloaded the workflow lab air application and i have played around with it for a couple of minutes. It seems to me that the idea is cool and also I needed something like this to organize visually the workflow of nw projects that I start. I used to do most of this kind of stuff on paper and go through a lot of pads. In the next couple of days i will explore it further since i have just started working on a project for a minisite for someone I know.
i'm particularly interested to find out the collaboration side of things and to see if these can add anything to the powerful tools of the share my screen set up accessible from cs4 programs.