Just yesterday in Frederick, in the middle of my house on the Sprint 3G with 2 bars,I ran a speed test and shocked and chagrined I pulled 1.44 Mbps down and 0.57 Mbps up with a ping of 75 ms....
Typical speeds are around .3 kpbs download with a 900-1000 ms ping response...
Still not LTE in site for Frederick City area, but much improved.