Autodesk has been retooling Smoke for 2013, so it runs on iMacs and MBP's. It will come out for about 3500 bucks in October this year. A free(!) Beta will be available beforehand.
More info at Larry Jordan's blog.
What does that have to do with FCS? There are non-sustained rumors that Apple lured Autodesk deeper into the Mac environment, with the promise to not develop FCP to a high-end suite (it never was one in any way).
Apple, in fact, highlighted the new Smoke in my meeting with them this morning. Apple stressed how easy it is to edit in FCP X and finish in Smoke