This is exactly the reason we started PlayCanvas [http://playcanvas.com]. I don't think it will be long before there is a modern browser in every TV, phone and tablet, in addition to every desktop machine.
I've seen you guys before, I'm gonna have to play around with this sometime. I like how you've decided to also be the publisher/CDN for the games. Right now it seems like everyone who launches some demo has to build and manage their own web presence. Something a native game developer doesn't necessarily have to do. This could help take that extra load off their back. I imagine you'll eventually offer internal APIs of sorts like Steam does, achievements, cloud storage for saved games, etc.
We love how easy it is to get a sample/demo/game published using PlayCanvas, we use it _all_ the time. We offer the option to download your game export and host it yourself but it's one button to publish to PlayCanvas so we're sure most people will want to do that.
