Verizon appears to be inching closer and closer to launching shared family data plan based on a leak obtained by PhoneArena. A screenshot shows a family data usage calculator, a tool that would be used to help families figure out the right bandwidth tier to go along with their mobile habits. Verizon CEO Lowell McAdam first expressed the possibility of shared data coming to Verizon family plans last year, plans later confirmed by CTO Fran Shammo. According to Shammo, Verizon is looking to launch shared data by midyear. If this leak is any suggestion of how close a new family data structure is to reality, things seem right on track.