Such a puzzle does not currently exist. The people at http://www.v-cubes.com/index.php are making 6x6x6 and 7x7x7s and believe that they're new structure method can be used to make cubes up to 11x11x11. They'll be releasing 5x5x5 6x6x6 and 7x7x7s in September.
If one does exist, it's a mod. a 9x9 by a certain company does not exist. Mods probably do since there are a lot of mods out there, but 6x6 and 7x7 are just coming out later this year, haha 9x9 won't come out for a while :P