I'm not religious, but I would really prefer people use REAL stats when they quote market share:
http://en.wikipedia.org/wiki/Usage_share_of_operating_systems
Depending on the source, Mac market share is 8 to 9% and still seeing double-digit growth. Linux is less than 2% for all kernel variants combined. With the new iMac release, I would expect this number to continue to spike. It would be in BW's best interest to release a Mac client, especially after the abysmal Microsoft Win8 release. Mac saw a nice spike when Vista hit the market. I would anticipate the same seeing the sales numbers of both Microsoft and Apple last quarter.