I'm not saying they have it, I'm guessing they'll need to. There's already some pretty complicated networking code in steam as it is - if steam adds cloud gaming to the mix, the infrastructure complexity is going to jump significantly.

If cloud gaming becomes something more than a dream, Valve is going to suffer hugely if the don't have a viable competitive offering.

Anyway, ignore me - I'm not sleeping too well today but now, and my brain's a bit melty.