We can also do prototype style OO

Now *that* would be interesting, although the URL you link to seems to be broken.

Sorry, link fixed. It is actually to a test script from the Moose distro. I had been talking to merlyn (who is apparently a big fan of prototype based OO) and he was asking of Moose could be made to do it. Of course, its not *really* a pure prototype based OO, but a thin prototype-ish layer over the class based system Moose uses, and implemented using metaclasses. It's fairly complete, so it probably could be made for real-world use, but I don't have the need or desire to do so, it was just fun to write :)