Loopt®, a revolutionary social-mapping and communication service, in coordination with NonStop Riot, a leading music marketing agency, announced today a new service that lets music fans follow their favorite artist as they tour around the country.

Among the front runners is Loopt, a Palo Alto, Calif.-based company started by Sam Altman, a 23-year-old Stanford University dropout

If you happen to be into bands such as Shwayze, Chromeo, 3oh!3, The Submarines, The Secret Handshake, A Cursive Memory, Meiko, Valencia, The Medic Droid or Bayside, you’re in luck. Now you can pinpoint their exact location when they’re on tour this summer using the location-based mobile social network Loopt.

Best overall application: Loopt, a company offering location-based applications for users of various carriers, including Sprint and Verizon. Loopt just struck deals to access massive amounts of GPS data.

The mobile service company Loopt, based in Mountain View, Calif., helps people find their friends and see what they are doing on a map on their mobile phone. It will use Facebook Connect so its users do not have to re-enter their connections to the friends they want to track.