XobotOS 是 Xamarin 的一个研究项目，用于移植 Android 4.0 的 Java/Dalvik 到 C# 语言。
XobotOS is a semi-automated port of the Android 4.0 source code from Java to C#. The automated parts were ported using an improved version of Sharpen that can compile more advanced Java constructs and supports generics. Most of the manual bits of code fall in two categories (a) code to integrate with the host operating system and (b) replace the Java JNI code used to call into C, with the ECMA CLI P/Invoke functionality
项目主页：https://github.com/xamarin/XobotOS
来自:开源中国社区
