I am not sure Apple OS is about 10% Bill. Remember for Apple they have bundled Boot Camp since 2006 or so. There are a huge number of Mac machines out there running Windows on Boot Camp partitions many with Parallels software installed too.

I have a hard time understanding why the Mac users are installing a $200.00 copy of Windows 7 and a $70.00 copy of Parallels on there Mac Lion machines.

I try to aggravate one person a day. Today may be your day.