Sprint has quickly followed up on their last announcement of seven markets with five more. This is of course referring to the rollout of the Sprint 4G network. The good news today comes for those in Modesto and Stockton, California, Jacksonville, Florida, Wilmington, Delaware and Grand Rapids, Michigan. Certainly good news for anyone in those areas carrying either an Overdrive Mobile Hotspot device or an HTC EVO 4G. Otherwise, the Epic 4G is also expected to arrive soon, and that is another solid 3G/4G offering.