Yep, Valve Is Experimenting With Half-Life In VR....
http://kotaku.com/yep-valve-is-e…n-vr-1689726340
I'm quite happy by this, that they are experimenting with what works, rather then just chucking all they have and hoping it sticks, I'd be quite interested to see how L4D & DOTA played out in their VR experiments though, especially with their game control system.