Android 2.2, a minor platform release, arrived last week with a bunch of changes ranging from Dalvik JIT and Kernel Memory Management Boost to a new Launcher.
You can check the highlights to get a bigger picture.
But there's one change that's almost not announced anywhere, and I consider it very important too.
With the advent of Android 2.2 you can install or upgrade the SDK and tools in Linux as root and the permissions are (almost) correct and you don't need further changes in this situation, or what is almost the same we can declare android-fixperms-updated defunct and no longer needed.
This is very good news if you are using continuos integration on Android as was described by various posts in this blog.
Great job Google.