So like, 28 * 12 = 336 ... do I get a new one every year? What happens if I lose it? What happens if it breaks? What happens if I cancel my service? I don't see this as a lucrative option unless Google really gives way on all of those questions.
"Google says there’s a three year subscription required. Hardware will be upgraded at the end of the three years, if people want to continue on the plans.
If hardware breaks, it’ll get replaced under warranty. But if you decide you want a shiny new Chromebook with perhaps better screens, trackpads or whatever midway through the program, there seems to be no provision for that."
Source: http://searchengineland.com/google-chromebooks-out-june-15-3...
So if you intend to do anything other than checking your e-mail over that connection then you'd better factor in the cost for a real data plan.