I bought a few last week from vendor at the local Greenmarket who is test-marketing them for a neighboring farm. After reading that growers pay a $1/tree royalty I understand why the vendor doesn't yet grow them himself, but considering how delicious they are I'll bet he will.

I think they're not quite as sweet as Honeycrisp but I will have to taste them side by side. Complex flavor, very crisp, and juicy. $2.50/lb at a neighborhood farmers' market in NYC.