I have two softwares I use a lot: CC softaware (almost all modules) and Rawshooter by Pixamntec, destroyed be Adobe (they bought the assets and transformed at Lightroom, I hate). These softwares makes me to stay with Windows otherwise I will change to Ubuntu or Solaris. If CC start working for Mac I will think to change for Mac. I'm really full of MS Windows and all changes they do full of bugs and obliging people to make another learning curve. I was an advanced user of Excel and now I didn´t discover how to remove a password from a spreadsheet made in Excel2003 with the brand new Excel2007. I don't care if Excel2007 is better I don't want to throw away years of learning and start again...
I think CC sooner or later will start designing for Mac and/or Linux

Two weeks ago I replaced the PC I built 9 years ago that was running XP. I am now using an up to date PC loaded with Windows 7 Home Premium (64-bit) and it is like a new world to me. I pushed that old PC too far... to the point that I was yelling at it! Anyhow, I have loaded all of my software most importantly my Coffee Cup software and wanted to chime in that it all seems to work perfectly. I have no issues at all... so far. The best part is that I paid for my new PC with money I made from my websites!!!