Wow! It was built ENTIRELY from scratch? Of course, you used the cmu math module still, right?
Also, just a recommendation, but PLEASE include jython scripting in Alice 3.0. Youdon't even have to officially support it. it can be just like in 2.
BTW, just downloaded 3.0.0.1.1, and it's awesome. I just ad a problem where the scene would stop rendering a lot. I had to restart quite a bit.
Also, once the core is complete, I still advocate using a truely open source model, like linux. Alice, being built on java, is designed to be open source. Packages and classes are independent. furthermore, and you able to use Kenai for an open source structure? Then, netbeans could be used to edit, and everyone could help. (Trustworthy people only, of course)
Good luck on progress!