The lack of touchscreen interoperability will be a major limitation which will encourage open source adoption.<p>Unfortunately, current client trends are counter to Microsoft's strategy. Firstly, people are buying laptops rather than desktops. Both are getting cheaper. Secondly, Microsoft follows the classic monopolistic tactic of racheting prices. Successive versions of Microsoft software a typical more expensive despite initial costs already being re-couped. These trends create a situation where the cost of an operating system and pre-installed applications take an increasingly large share of the retail price. This creates a third trend of laptop manufacturers who opt-out of the "Windows tax" and only supply units with tailored open source software.<p>In two years, we'll probably have a device which is a mix of laptop, mobile telephone and Nintendo DS. It would be a clamshell design with two 11 inch screens with the bottom one being touch sensitive. You cannot rely on Microsoft to support such a device. Nor would it be viable to include Windows. So, such a device would mostly be used with open source operating systems.<p>This design has already been tried. Unfortunately, it was quite a few years ago and it was a commercial failure. However, since then, the technology has improved, the cost has fallen and the volume of people who only want to run open source software has grown significantly. This would make a similar attempt much more likely to succeed.<p>It is understandable that such a trend would adversely affect Microsoft. Therefore an attempt to steeply discount Windows on limited hardware has two benefits. It creates an artificial divide between premium hardware and almost disposable devices where Windows is viable on both. Secondly, it reduces the inclination for low cost manufacturers to abandon Windows.