Yeah, it flew only a couple times, as far as I can remember, but it did get into the air once or twice. It didn't fly as much as recall, and it was years and years behind schedule. I think it took flight in the early 2000's.
Man, if there was a 1/48, it would be HUGE. This thing is no small-fry. It clearly borrows from the MiG-25/31 family gene pool for size, as opposed to the MiG-19/21 side of things!
It's a beautifuly plane, though, and would look cool beside J-20s and that F-22 figher/bomber delta-winged concept!