WhatsApp, the popular cross-platform instant-messaging app, has had a busy past year or so. Following the purchase by Facebook for a massive amount in the billions, it recently launched its very own Web service, but despite the expansion, it's not readily accessible to each and every smartphone owner. Because of data limits, many WhatsApp users are often forced to converse only when Wi-Fi is available, but for a flat, annual fee amounting to the equivalent of $11.60, one Italian entrepreneur is peddling a SIM solution that'll enable unlimited WhatsApp messaging anywhere in the world.
