I never once mentioned the government running the infrastructure COMPANY. My local power company, Dominion, has two separate sides - a power generation side and a power distribution side. Both are heavily regulated by the Va State Corp Commission, and both have to apply for rate increases that are not always approved. The distribution company has strict performance requirements and fixed profit caps in exchange for being the only power distribution company that gets to run lines to your house. You can buy your power from any number of generation providers (including the generation side of Dominion) that all use the same distribution provider. Their rates are separate on my bill.
I could start "Dave's Power and Light" and provide my 'Green power from horse turds' over the same distribution network for not a whole lot of up-front cash. I propose the same structure for all utilities, including cellular.
I can think of lots of things that I'd like to socialize long before telco.
You realize that the same distribution company/provider company situation already exists in the landline telco industry, right? I can get my dialtone from anyone over my local telco's wires to my house.