After the announcement that the Sims 2 would be coming to Mac computers as well, Aspyr Media has updated their site. More specifically, they've updated the project status page. There is a list of all the games Aspyr makes, and the Sims 2 has been added. It's currently in "Early Development," so conversion will still take a while. It's currently stated to be released May 2005, after the first expansion will be released on the PC. Note that this release date is estimated, and might not be accurate.