I think it's also called a monster cross also. I currently picking up stuff to convert my mid 90's unknown titanium mtb. I upgraded it this past spring to brand new Sram X9 and BB7 discs and a rigid carbon fork. The geometry is almost identical to the Vaya I sold earlier this year. It's my favorite bike in my stable because it's so versatile and with micro knobbie tires it's great on single track as well on the street. I picked up some nice Truvativ bars today and it's just a matter of finding some Sram levers to replace the X9 trigger shifters.
My only problem now is I keep finding cool project frames at the shop up the street. When he only charges $5 for frames how can you not want to take them home to build them up. Curse him!!!