A waste of money. Period.
It's exactly like what the 6800 Ultra was like with the 6800 GT, only this time it's the 8800 Ultra and 8800 GTX. The ONLY difference is the higher clock speeds and new revision of silicon (which is how they tweak it higher). Other than that, it's
exactly the same as a GTX.
Oh and GUESS WHAT? They charge you another $200+ for it! How retarded.