Xamarin company has ported java parts of
Android to use C# and .Net framework that give the result XobotOS Android like
Operating system to overcome legal entanglements with oracle. Compare to the
java program in Android, it perform well and .Net programs run much faster that
is making it interesting.
Xamarin developers say that XobotOS is only a
research project it is seem to as a improved version of Sharpen which is a tool
to make conversion java to C#. The .Net based application XobotOS offers a good
opportunity to avoiding the patent claims that oracle is making against Google