Marc Andreessen, writing in the WSJ Why Software Is Eating The World, writes:

More and more major businesses and industries are being run on software and delivered as online services—from movies to agriculture to national defense. Many of the winners are Silicon Valley-style entrepreneurial technology companies that are invading and overturning established industry structures.

The best evidence of Software eating the world, one that I think he missed, is that the Phone component on an iPhone or Android device is an app, just another piece of software!