Nice. How will you fix big download times? I imagine it sounds to cool to be able to start a game in a browser straight away until you realise you still have to download it like any native game, so in reality other than avoiding installing a marketplace like Steam it's not much of a difference experience to play in the browser.
The two main ways we address this are with our asset streaming system (only loading in what is needed, everything else loading in the background at runtime) and compression (both data compression and texture compression).
