The fact that French ISP Free just began offering its own cellular service is pretty nice, but the realization that it did so by building its very own prepaid network -- rather than simply hopping on a dedicated cellular provider's towers -- is a noteworthy feat. Even more impressive, Free is offering the service, appropriately called Free Mobile, to subscribers at a price that matches the name of the company. Sure, you're not getting a ton of minutes with the basic free plan (60 minutes and 60 SMS / MMS messages), but you can get a load more (unlimited calls and texts, 3GB of data and unlimited ac
