WDS' study of 600,000 support calls from June 2010 to May 2011 has come up with some interesting percentages about the various mobile platforms. For Android devices, 14% of the problems were faced to due to hardware error compared to 9% in Windows Phone devices.
The main cause of the Android problem is its uncontrolled OEMs, while Microsoft has a much tighter control over Windows Phone manufacturers which results in more polished devices.
These findings are great for the Redmond giant which, according to research will have a huge chunk of the market by 2015.
