AT&T has long believed in their "three screen initiative," or the idea of seamlessness between your PC, mobile phone and laptop. AT&T's Michael Antieri tells Light Reading that some additional bundle ideas are coming before the end of the year, specifically a single voice-plan that covers both mobile and home phone lines:Last year AT&T issued an RFP (request for proposal) to suppliers to aid in deployment of a likely femtocell service, not entirely unlike T-Mobile's Hotspot@Home offering.