Unity Technologies – the people behind Unity, the popular game development toolkit – is having a contest to promote the integration of the Unity toolkit with Flash export and playback features. Basically, you can enter the contest by creating a game project that is built using the Unity 3.5 public beta and the developer preview of the Flash deployment add-on (if the project adheres otherwise to the official rules). Meaning, you have to create the game using the Unity 3.5 version of the kit, but it has to be playable using Flash. For more information about the contest, click here: http://unity3d.com/unity/
Even if you do not enter the contest, it may be worth it to check out the beta and the integration with Flash playback. Before, it seems that if you created a game using Unity, you had to have some sort of Unity player (be it a web plugin or discrete application) to play the content. But now, your Unity-created game will be able to reach a greater potential audience! Create Flash platform content with the Unity 3.5 public beta and you could win the grand prize of $20,000!