Games as team-building exercises?

CNN has an interesting articleon a new trend among large global businesses, who are attempting to'spruce up' their online distance working systems, by adding virtualworld elements. Colleagues who are thousands of miles apart and who maynever have met are usually united online via dry, humorless businessapps. But corporations like Intel are experimenting with new systemsthat add-in social networking elements, and even games. From the piece:

When CDC Software recently staged parts of an annualsales kickoff event in a virtual world created by Unisfair Inc., itincluded an online version of the golf outings that commonly accompanysuch affairs. It held tournaments in baseball and golf video games -and gave real trophies to the champions, said Julian Hannabuss, a CDCsales director.

It's an old business cliche - deals being forged on the golf courseand concluded on the 19th hole. Can this be transfered into Tiger WoodsPGA Tour? I wonder if any business machinations have been hammered out,literally perhaps, in WoW?

Eyeing that same future, IBM researchers are exploringwhether groups of people in different locations can bond by playingcollaborative virtual-world games, like solving puzzles together. IBMcalls the effort "Inward Bound," a nod to the Outward Bound wildernessexercises.

Games are already functioning as informal team-building exercises -how many offices are right now running round-robin Scrabuloustournaments? But as a practice organised and sanctioned by uppermanagement? I love the idea of workgroups playing co-op CoD or Halo. Itwould certainly be a lot cheaper and more convenient than carting thewhole sales dept out to some nightmarish team-strengthening event inthe Pennines.
So, what game would most suit your office as a team-building challenge?