I'm primarily a sysadmin rather than a programmer. TCL first hit my radar at the USENIX where Ousterhout introduced it, and has been on my list of Good Things ever since. Most recently I twisted Clif Flynt's arm to get him to do the Tenth Annual Tcl/Tk Conference, and pitched in a bit to get the network running in the meeting rooms.
I was particularly impressed by some of the things folks have been doing with Starkit. It jibes very well with a lot of the issues I addressed in 1994 with the paper Software Design For Installability . It's good to know that things move forward.