Re:code reuse (Score 2, Informative)

They sort of do that, to a point. Atos Origin, formerly SchlumbergerSema, formerly Sema, was contracted to provide the IT services for four games starting with the 2002 Winter Games in Salt Lake City. The software for the 2002 games was written from scratch (since IBM had performed that duty in previous games) and those systems will evolve through to the Beijing games in 2008.

There could probably be some good arguments for having the IOC take control of the IT services, or a portion of them, but I believe that responsibility currently resides with the body organizing the respective games (Athens, Torino, etc).