According to the Wall Street Journal, the number one wireless carrier in the country is planning on implementing tiered data pricing some time in the coming months. Verizon's Chief Executive, Ivan Seidenberg, said that we can potentially see in the next four to six months a new form of tiered pricing. Now it's rather difficult to say if it's in regards to their upcoming LTE network, which is expected to go live by the end of the year, but it wouldn't surprise many people if it indeed has a lot to do with this new revelation.
When looking towards the competition, Seidenberg wasn't in agreement with how AT&T is setting their tiered data plans – going on to say that AT&T isn't valuing their data. It wouldn't surprise anyone at this point if 4G networks, that are becoming more prevalent, will become the major force in bringing forth tiered pricing – but we'll all see soon enough.
source: Wall Street Journal