chandru.in
In the zone
SourceAny product that owns close to 90% of a market that is as gigantic as the global PC market would be considered a huge success. In the case of Microsoft, that is, of course, different. Windows has suffered from a continued market share decline since the 2003/2004 time frame and November 2008 was the first month in a very long time that Microsoft has dropped below 90%, 89.62% to be exact, according to Net Applications.
A very high share still.
Also Firefox's share held for a month above 20% during the same time.
Source
Just as noted in the Firefox's story I guess people use alternate OS more for computing at home while Windows continues to be forced down the throat in corporates.