this is a physical limit due to the speed of light, nothing any mortal can change. in fact, anything wireless is going to have higher latency than wireline -saimike
The signal traveling a wireline is also limited due to the speed of light. (nothing can travel faster than light) If anything, wireless should have lower latency for several reasons (that I can think of):
1. The signal travels DIRECTLY to the destination. If you are 20 miles from the transmitter, the signal travels 20 miles. If the signal is sent along the phone/cable lines, it will probably travel 30 miles or more.
2. Less circuitry (signal processing). Wirelines have repeaters every so many miles. That would undoubtedly slow down the transmission.
3. No other traffic on your frequency. You don't have to share your wires with other people. (Ok, I don't know if Sprint devotes a small band of frequency solely to you or not)
4. Sprint will pick the best location to access the internet backbone for a 35 mile radius. (At lease I would hope they would.) This will decrease the number of hops to your destination.
The only thing hindering the Sprint wireless ping time is delay at the transmitter and again at the receiver. Too bad I live 50 miles from civilization instead of 35. Maybe it will work anyway...