Apple's market share is growing, in line with what we would expect as many analysts in the IT industry believe we are heading for a tipping point in a few years where more and more people reject Windows.
Indeed, Apple's U.S. Mac sales have grown at triple the rate of the rest of the PC industry since last fall, propelling it into third place in the U.S., behind Dell (Charts, Fortune 500) and Hewlett-Packard (Charts, Fortune 500).
Taken from: Apple's surprise weapon: Computers .
So while this is in line with expectations (in terms of very healthy growth for Apple), it is somewhat surprising that they managed to achieve number three in terms of market share. While there are conspiracy theories that Google may be intersted in buying Apple (I don't subscribe to this point of view myself), it looks like Apple are doing just fine doing what they do best - producing great computers and focussing on user-centric software. Did I mention that Mac Mini boots in twenty seconds?