It seems like all the major players are taking game streaming seriously. I'm still not very sure about the viability. There's the obvious DRM win. Accessibility will be higher with way lower or non-existent hardware costs. These probably look very enticing on a cooperate slide deck. Not to mention the subscription model. On a more technical side game streaming is only really desirable for games that don't run well on…
Moreover I was able to play a AAA title on my 2011 Macbook Air and that was fantastic.