that will be messed up if the only multi console game that will be 3d on the 360 is crysis 2. Ghost Recon should definately be also.
360 had Avatar in 3d with no special update or anything and even had the option for dlp tvs so obviously its not problem to make the with a 3d option and even option for diff formats/tvs (including checkerboard for dlp tv).
exclusives to ps3 i could understand obviously not being on 360 but 360 will have exclusives also and can easily display the 3d. its just up to the company that makes the game which I see no reason why they would make the ps3 version 3d and not the 360. that would just cause them to lose money