The game developer, in a short interview, confirms that it should be only 2-3 weeks until the release of the full version for Android. Rovio pointed out that the game does not support QVGA displays which is why Angry Birds is not available for the HTC Wildfire. It does run on the Hero, but with a significant lag.
There is no such thing as a free lunch. In the App Store, the full version of the game will cost you 99 cents, so be prepared to reach into your pocket to feed your Angry Birds addiction.