Sprint has revealed some more details on its continued LTE rollout today alongside some rough earnings and a new QWERTY smartphone. Five more cities — Baltimore, MD; Gainesville, GA; Manhattan / Junction City, KS; and Sherman-Denison, TX — will get their 4G fix from Sprint "before Labor Day" (that's September 3rd, for those of you outside the US). The biggest among that list is undoubtedly Baltimore, a city that was originally slated to be on the first LTE wave that arrived on July 15th. The other markets announced today serve to expand service in areas that already have the high-speed data service (Atlanta, Houston, Dallas, Kansas City, and San Antonio). Sprint still assures its customers that it will offer LTE to 250 million people by the end of 2013, and it says that even more markets will be lit up before the end of the year.