While EE celebrates reaching 1 million 4G subscribers, Vodafone is stepping up its game to get you to become part of its LTE family. Originally limited to London at launch, Vodafone says it plans to roll out its 4G network in Birmingham, Coventry, Leicester, Nottingham and Sheffield on September 28th. On top of that, the operator will also throw in an extra 4GB of data if you join before the end of October. Vodaf