What's a detachable tablet?
Figuring out what these categories mean isn't so simple. While the Surface Pro requires a tablet to anything serious, the iPad does not. Comparing the two as both being detatchable tablets isn't a real comparison. It's true that Apple added this, but it isn't required nearly as much as it is for the Surface Pro. I'm typing this right now on my iPad Pro using the on screen keyboard, and always do. It works very well. I use AutoCad 360 as well as a number of productivity apps, including Word, without a problem. It's much more difficult doing that through Windows on the Surface Pro. I know because I've used those tablets, the 3, and now the 4. I also don't need the stylus unless I want to use it for drawing apps and the like, for which it's great. But you really need the stylus, at least, using Windows on the Surface Pro. In addition, when has IDC, or Gardner, for that matter, ever been right in their predictions? According to both, Windows sales should have begun a rise over three years ago, and Win Phone should have a marketshare of 20% worldwide. What isn't ever mentioned in articles such as this, where IDC or Gardner are quoted, is that Microsoft is a very big client of these firms, and the stated objective of those firms, as seen on their websites, it to further the fortunes of their clients. No surprise that they struggle to make Microsoft look better than it is, until they no longer can.