abg
Enlightenment already implements window groups, dunno about other window managers...You can create a group of windows and specify what actions will affect all the windows in the group, like move, iconify, shade, etc. It's pretty slick.

other stuff
I setup JRun 3.0 on a debian box today. There is a bug in allaire's shprompt script that made it somewhat a PITA, but it is now going. Time to hand it off to the development staff. I've got a headache...