News: And it's being developed by n-Space.

Activision has announced that a DS version of Call of Duty: Black Ops is in the works and will be released alongside the PC, PS3, Wii and Xbox 360 editions on November 9.
Once again developed by n-Space (the team has handed all previous CoD titles on the DS), the game "will put gamers in the boots of CIA-backed operatives that are dropped into the shadowy world of deniable operations with an expansive arsenal of weapons at their disposal." Black Ops on the DS will also include a six-player online multiplayer mode, a two-player Co-Op mode and single-player Arcade and Challenge Modes.
"Call of Duty: Black Ops for the Nintendo DS is going to take the handheld Call of Duty experience to a new level," said Dan O'Leary, n-Space Studio Head. "From taking the controls of an attack helicopter to flying an experimental stealth fighter jet, players will have a wealth of new features to utilize."
We'll have more soon.