30 Million Steam Accounts

It's the console gaming system that doesn't come with a video game console.

Steam is rockin' it. 30 million user accounts is better than Playstation and may be better than XBOX. And yet most advertiser haven't considered the power of what Valve's gaming platform can offer.

Just wondering if anyone here has heard of steam and has considered what marketing possibilities it might offer? Obviously the game marketers are taking it VERY seriously. But I wonder if anyone has approached Valve about partnership deals. It's a LOT of engaged eyeballs.