from various MS financial report of ~a year ago
In another report theyve also mentioned ED+D income was down since they sold less Mac software
My bad. Even though your quotes refer to Mac software which inconclusive of alot of different MS software which is sold for Macs, MS makes a comment in Q3 2009 Q-10 thats makes specific reference to Mac Office.
"EDD revenue decreased primarily due to decreased sales of application software for Apple’s Macintosh computers, partially offset by increased Xbox 360 platform and PC game revenue. The decrease in revenue included an unfavorable impact from foreign currency exchange rates of $38 million or two percentage points. Sales of application software for Apple’s Macintosh computers declined 63%, reflecting the launch of Mac Office 2008 in the prior year as well as a decline in sales of Apple computers. "
"EDD operating income decreased primarily due to increased research and development expenses and cost of revenue. Research and development expenses increased $66 million or 18%, primarily reflecting increased headcount-related expenses associated with the Windows Mobile device platform. Cost of revenue increased $52 million or 6%, primarily driven by increased costs associated with the Xbox 360 platform, reflecting the increase in console and video game sales."
The question is how big is Mac Office because they attribute the 63% drop in Mac Office sales to the 2% decline in revenue which is like 25 million dollars.
They don't attribute Mac Office as the primary reason for the operating income decline which went from 106 million to a loss of 31 million.
Even if we assume Mac Office's revenue is pure profit with zero revenue cost and assume that Mac Office drop off is responsible for 100% of the effective 137 million dollar drop in operating income. That would effectively put Mac Office quarterly profit at 220 million in Q3 08 but more like 83 million for Q3 09.
That would be a guess based off a best case scenario with all other businesses with EDD being cost neutral. But its highly unlikely that Mac Office is pure profit or that the 360, windows mobile/embedded OS and Zune are all cost neutral.