N-Gage exclusive for Nokia N81 and N81 8 GB
People who miss the absent of N-Gage, Nokia’s arm in gaming phone form, now can use Nokia N81 (and its 8 GB variant) to play their favorite games. Those handsets will have exclusive access to the pre-release version of the N-Gage application and one or more N-Gage games. The release is scheduled this December 20. Hopefully more Nokia line ups to be included to the list.
Source: official site
but that how I think.