Then again, it does seem like a lot less work to run Collide, if we can do it with Chromium and OpenJDK.
Update: I tried running Collide on my machine. It took some hacking to get through the Ant build process, and finally I came to a point where the README said "run ./bin/deploy/collide" and I said "there's no bin/deploy directory" and the README stood silent.
I have an email out to the list, but I'm not sure they'll be super-responsive.
Cloud 9 may be a better option... :)