The Surface Pro is growing very well, though I don't think it would be accurate to say that it is signicantly taking away share from the iPad. As far as I know,

The Surface Pro is growing very well, though I don't think it would be accurate to say that it is signicantly taking away share from the iPad. As far as I know, the SP3 sold ~800k units last quarter, as compared to the iPad's >12 million. It's really hard to say how Android tablets are doing because the market for them is so diverse.