Google just announced Android 3.0 Honeycomb and has released a preview of the SDK to go along with it. Here are the big points:

A new "holographic" user interface and interaction model -- what we've seen on the Motorola Xoom.

UI framework for creating great apps for larger screen devices.

High-performance 2D and 3D graphics.

Support for multicore processor architectures.

Rich multimedia: New multimedia features such as HTTP Live streaming support, a pluggable DRM framework, and easy media file transfer through MTP/PTP, give developers new ways to bring rich content to users.

New types of connectivity: New APIs for Bluetooth A2DP and HSP let applications offer audio streaming and headset control. Support for Bluetooth insecure socket connection lets applications connect to simple devices that may not have a user interface.

Enhancements for enterprise: New administrative policies, such as for encrypted storage and password expiration, help enterprise administrators manage devices more effectively.

That's quite the laundry list, indeed! We're going to dive into this. [Android Developers Blog]