Not really. And the counter-examples he gives either didn't look trivial at first (the iPhone: actually everyone gapsed upon its introduction), or aren't really "world changing" (Facebook, Twitter: just some social networks).
As for the "Arab Spring" thing. Revolutions happened all the time without them. There were huge movements and shakedowns throughout the sixties, seventies and eighties, including in the Arab world (Iranian revolution anyone?). It's mostly Silicon Valley and western media bullshitting that made some believe Twitter et co role in Egypt etc was "crucial". Plus it's easy to make starts out of the few Egyptians who tweet etc, and are usually of the more affluent and easier to talk to the press classes).