Live! disrupted the traditional single player experience with laggy online and crummy games (original xbox)
And BR is disrupting the DVD industry from the top-down by providing much higher end quality for a similar price. (BR players are nearing sub 100$, and the ps3 is what secured this "disruption?")
Also, the PSPGo thing with DD seems to be doing this. Smaller screen, limited capacity, niche consumer base.
In this article I'm reading, The Ipod disrupted mp3 from the top down, but satellite from the bottom up later on in the lifetime.
Also, I'm curious what happens when a disruptor faces "controlled environment". For example, it's hard to break into BR's market because it has contracts with all the major studios.









