Download the Android platform source code open source GPL

As we all know, Android platform is open source mobile phone operating system, the kernel used is Linux. GPL all source code under an agreement made public. Most of the code open source platform, but Google Dalvik virtual machine is not open source. Android kernel source code official download page http://git.android.com/ Android simulator and related components official download page http://code.google.com/p/android/downloads/list