上面的android 文章很好。
http://elinux.org/Category:Android
Android Porting Guide
http://www.netmite.com/android/mydroid/development/pdk/docs/index.html
http://benno.id.au/blog/2007/11/18/android-framework-startup
http://www.windriver.com.cn/mobile/pdf/08_Android_Multimedia_Framework_Overview.pdf
