Vivitar released one around a year ago (OK, I agree that Vivitar isn't one of the big makers, that their reputation has gone down a long way since their Series 1 days & have to say that the last Vivitar lens that I had, a 500mm mirror, was awful beyond belief)

Here is a link to a review:

Not cutting edge, but it certainly looks to give the FM10 a run for its money. They must think that there is a market for new 35mm SLR's to bring it out, so maybe one of the big makers will think so again one day?