Developers have been able to play with Android SDK 4.1 since it was unleashed at Google I/O, but it's now finalized and ready for prime time. New system images and platform components give devs access to the finished Jellybean APIs, while bugs in the Android SDK Tools revision 20.0.1, Eclipse plugin and NDK have been stomped. Follow the source link below to download the confectionary-themed OS development tools.
http://www.engadget.com/2012/07/18/f...-for-download/