Apple TV is coming. Just like Apple reformed the stagnant music business, so will Apple save us from the corrupt cable companies.
Apple definately caused a disruption in the growth of console business, but console manufacturing companies are adapting in their own way to combat this threat by changing USP of their hardware from a gaming device to a family entertainment product.
I have being reading lot of stuff on how console gaming would die a slow death, android and other open platforms in future would capture big screen gaming, which would eventually happen however consoles are here to stay and they are learning to adapt
See on www.forbes.com