It's tulipa praestans 'Unicum'. Brent and Becky's have it listed for their fall catalogue already. It's a great plant, I've had it now at least 8 years and it just keeps multiplying and multiplying. the foliage is nice too with the white stripe adding interest till it dies off. This photo was taken a number of years ago and the clump is so much larger now. It also blooms early and disappears early.