The biggest threat facing the living room PC and Steam Box is Apple, says Gabe Newell.
The founder and head of PC gaming icon Valve spoke of his company's plans to introduce its "Steam Box" to what was once the domain of game consoles at the University of Texas' LBJ School of Public Affairs

"The threat right now is that Apple has gained a huge amount of market share, and has a relatively obvious pathway towards entering the living room with their platform," said Newell as reported by Polygon.
"I think that there's a scenario where we see sort of a dumbed down living room platform emerging I think Apple rolls the console guys really easily. The question is can we make enough progress in the PC space to establish ourselves there, and also figure out better ways of addressing mobile before Apple takes over the living room?"
This might sound a bit paranoid, but if Apple were to put its own living room platform forward with the hardware capable of even mid-core games it would cause at least as much disruption as Nintendo's Wii did at launch