We first looked at the new SDK tools and various resources coming with version 17 at the beginning of the month, and today they have become available for installation through the SDK manager program. The new download is chock full of goodies for developers, with things like more Lint rules, support for custom views and custom attributes in libraries, and much needed improvements to the emulator. And of course, hackers and coders alike will love the new DDMS views, including the detailed network traffic meter.
It's also worth mentioning that there's an x86 image you can download for the emulator, but for now it's stuck at Android version 2.3.3. We expect that to change soon enough, as Intel has shown they're serious about Android.
Getting the update is easy enough -- just fire up the SDK manager and install. Now get to work making some killer apps, and be sure to let us know about them so we can share them with the world.
Source: Android Developers