As someone who obviously comes from a Flash background I’m finding this all quite mouthwatering. Just like Zynga’s PlayScript, TypeScript is in many ways a spiritual successor to ActionScript 3. Developing with TypeScript and working with Flash content exported using the Toolkit for CreateJS could provide a really familiar workflow for Flash developers. Plus, whereas AS3.0 is likely to be the end of the line for the ActionScript language, it looks highly likely that TypeScript will have a future.
Check out the video above where Microsoft’s Anders Hejlsberg gives an introduction to TypeScript.