Mort and I have been hacking away at perscon, and it's got a neat prototype UI now and lots of plugins for common services (mostly if you're on a Mac). Blog update at:
http://perscon.net/2010/04/15/uiprototype.html
I'll be back in the Lab from Monday if you want to chat/see demo --- I'm also working on an alternative version that runs on Linux and implements the same HTTP API so it can run independently of Google.
-anil