Mat-Su Express variety

[Yak54]

I just wonder what ever happened to the variety Mat-su express that was being developed 3 or 4 years ago. Haven't heard about any new developments that were going on as to the different types of fruit that were coming out of the different plants. Last I remember there were Plant A type & Plant B type. What is the final outcome of this development. I'm always looking for really excellent tasting tomatoes and if I recall this one showed great promise as a possibility to be an excellent tasting tomato. I seem to recall that one of it's desired characteristic's was that it be an early maturing variety. I stopped growing early maturing varieties almost 20 years ago cause I never found one that measured up in the taste department. So these days I only grow varieties that mature in 70 days or more for the best tasting varieties. But maybe I should try Mat-su Express.
Anyone out there that can give any update if this variety has been stabilized and finished in it's development ? I'm all ears !

Dan