I think for now we need to consider Atmosphere in the same light as Macromedia's Flash. It's not the best means of delivering animation, but it's pretty darn good in the context of delivering it on the web. Adobe faces the same challenge that Macromedia conquered - getting the browser (player) into the hands of web browsers whether they need it or not. I'm not an online gamer, but how does Atmosphere compare to EverQuest and the like? If only we could hop into a world as immersive as Stephenson's Metaverse.