It's only for Linux, Bonnie. I don't know if there would be a chance would be of getting it working under OS/X.

I haven't really used it yet. At first glance I think I prefer the old version of Cakewalk I used to use on Win but I might grow to like it and I will be able to use it if I do start dabbling with midi again...

...Maybe next year. I'm toying with the idea of going dual Linux boot on my PC and having one Linux installation for general office and my odd bits of development and the other more geared for multimedia. If I do, on the multimedia side, I might end up with my usual favourite, OpenSuse, but Ubuntu Studio is one of possible candidates already set up that way.