Currently Japan and Germany are leading the world with this type of technology: trains that run on magnetics.
It looks very bright for the future when considering the fact that ultimately this world will eliminate the sources of fossil fuel burning. Maglev Trains (short for magnetic levitation) produces zero emmisions. Most interesting of all though is that it can go up to 310mph, a new alternative to conventional airplanes.
The following areas in the US will have the Maglev :
Califonia to Nevada
Baltimore to DC
Pennsylvania