The Tango does look like an interesting bike!

Like you, I've been looking for a 29er as well.... my inseam is 29" so like many, it's difficult. I have been looking at the TRail Series in a Small, and as you probably know the standover is 30.5 in the 29er and 29.3 in the 26" wheel. So time will tell.... Perhaps they'll come up with a 650.... I'll have to ask the rep the next time I speak with him.

Good luck in your search!