I've been kicking around a slightly different approach to delivering games over the web. Broadly, pick a class of game you intend to work with (I was thinking

I've been kicking around a slightly different approach to delivering games over the web. Broadly, pick a class of game you intend to work with (I was thinking of building one for RTSes) and build an engine targeted at that genre. You can make the engine have good performance since you can write it in native code, so you don't have to fight with the limitations of JavaScript/Actionscript/any other sandboxed language. Embed a sandboxed Lua interpreter inside this engine. Force all game-specific code to run inside this interpreter, making sure that the engine is complete enough that nothing performance intensive is game-specific. Then turn this whole thing into a client that users install. Make it easy to have links that automatically open in this client. If you're feeling fancy, make it operate as a browser plug-in, and then technically it will actually run in the browser. :-) How many people would develop for such a platform if it existed?