In the same way that Walmart comes into a town and destroys local businesses, Google can enter into an industry/sector and destroy most of the competition overnight by giving an application away for free. Who is going to pay $100 for a Maps Application now (or more for a hardware device) when they can just download one for free.
Isn't this the same type of stuff we accused Microsoft of doing years ago? Yup, Walmart, I mean Google strikes again. Pray whatever industry you're in Google doesn't decide to suddenly release a free product.
To the systems programmer, users and applications serve only to provide a test load.