Esko has been working on different blueberry phenos from DJ Short's work. The plan is to eventually release them as Blueberry Indica seeds, I think. (He's already got a line of Blueberry sativa seeds out.) They are being tested now.
If you want to know more, your best bet is to IM Esko through the Open Grow site. I don't know if he has anymore tester beans, but you may be able to get in on the NEXT test. I have only tried one Esko cross so far, which was a freebie called Chocolate Cheese. God's gift to stoners, IMO.