I saw this this morning on SportsCenter with some of the other M being M highlights of his career. I had completely forgotten about how he 'cut off the cut off' a few years ago when (I think) Johnny Damon's throw was coming in. That was the greatest thing I've ever seen. I mean, he *dove* for that ball!
More interesting is Neyer's comment on that ESPN page: I would say this is probably the most likely scenario. Ankiel must have a real fear of pitching or seriously doubt his ability to pitch anymore to make this move.