Apparently AutoCAD is coming to the Mac OS.  I've got a mac, and a bootcamp install of Windows 7.  I like both, but find I use the mac side for personal media management (videos, photos, and music) and windows 7 for productivity.  This might be because I've used Windows personally and professionaly for years and am more comfortable (although 7 is quite a departure), or it might be do to all the software available on Windows.  Will this push ESRI to release something for the Mac?  They've got an iOS app already.  I doubt it.  They are pretty heavily tied to windows, and porting that much code can't be cheap or easy.  There would have to be a pretty big incentive.  It isn't clear if it is just the base AutoCAD coming over or the whole family, including their GIS (Map 3D).  If a competing GIS becomes popular on the Mac, then that might be enough incentive...  Anyway, I guess this shows how macs are not just the domain of graphic designers, web developers, and personal computers anymore.