Head man of Impulse distribution platform parent company Stardock, Brad Wardell, says his company's estimate puts Valve in charge of about 70 percent of the PC digital distribution market.

The nearest runner-up is the company's own Impulse, albeit with only 10 percent, whereas all the others make for a 20 percent remainder. This speaks volumes of just how important Steam is, but that's not all.

Apparently, Mr. Wardell argues that Valve is trying to monopolise its status by integrating Steamworks into games in early stages of development. This pretty much locks the game to Valve's distribution platform, which doesn't quite constitute fair play as users would need to install Valve's platform after downloading a game from Impulse.

More here.