Google's Offline Maps Undercuts Its Connected Vision
pcmag.com
pcmag.com
It seems clear to me that Chrome OS is intended to work offline anyway, so even if Google were spellbound by the no-hedging-your-bets fairy, I'm not sure that this would be a convincing demonstration of its power.
I'll use this feature when I cross the boarder because data roaming costs are expensive and finding wifi isn't always convenient.