no silver bullet for market dysfunction
google can lay fiber but that doesn't mean the incumbents who google overlay as a 2nd or 3rd provider are going to compete and offer faster speeds at lower prices!
now that Verizon's gotten complacent and LAZY with attention to FIOS just adding new price increases.. that puts their competitiors in a good position to offer better service and win back customers (but will they?) Verzion in part has gotten enamoured by the shift in consumer apathy to paying higher prices for wireless service including gouged prices for usage based billing in data (following AT&T's attempted spectrum grab from Tmobile).
google will not solve market dysfunction with mirco builds in isolated markets. what needs to happen is putting more builds in places where incumbents enjoy high prices and no fear of competition such as a CenturyTel and/or non-upgraded parts of Comcast land. it would be nice if google offered speeds faster than 1gbits as well if at all practical-- why stop at 1gbits? the only reason I can see is that 10 - 100 gig-ethernet or FDDI cards cost some serious money.. $150+ routers are just about non-existent in the residential consumer market.