Google has released the full Honeycomb 3.0 SDK updates, meaning developers can download and begin work with the finalized APIs for Honeycomb. This comes in preparation for the launch of the Motorola Xoom on Feb. 24 and will let developers check what they've built using the 3.0 SDK preview against the final version before the Honeycomb tablets start to roll out. If you're an app developer, or just like to keep your SDK current, you can update things through the SDK manager.
It's worth noting that the AOSP source (as well as Motorola's open-source portions) should be released before the Xoom is launched, so be on the lookout for that come Thursday morning if you're a DIY kind of person. [Android Developers blog]