I first learned about ACS during one of Philip's seminars at Stanford in Jan 2000. As a then Java bigot, I was really surprised to hear about Tcl. But eventually I became convinced by Philip's discussion of how much more appropriate a scripted language is for web applications than is a compiled language like Java. Philip was particularly derisive about Java "junkware/bloatware" like BEA/WebLogic.
So what happened to this basic architectural belief at aD in the meantime? How is aD's new direction different from what Philip was once criticizing? What about the Tcl argument is no longer compelling?