Smartphone users are well immersed in a world of contact syncing, media sharing, VoIP and video calls. They're just not used to finding everything in one place, let alone guaranteeing that any carrier-level features will work with other phones and providers. MetroPCS is hoping to put itself ahead on that front by offering a potentially universal fix. It's the first carrier anywhere to launch the Rich Communication Services standard on LTE, which provides a perpetually synced contact list that serves as the launching pad for everything e
