Yay! I knew this day would come! So far, I haven't heard any official words from Valve, but I'll admit that the new translations are promising. 

Transactions are processed with BitPay, so I'm assuming the coins will be converted to fiat instantly. That's besides the point; as long as I can pay in bitcoin, I don't care what they do with the coins I pay them.

At the very least, it'll show Bitcoin to a whole new audience and legitimize it. Positive exposure it what bitcoin needs!