code: function (dbresult) {
                  if (dbresult === null || dbresult === undefined) {
                      this.Debug (1,"Hoops: no DB info for %s", data.devid);
                      return;
                  }
                  
                  for (var idx = 0; (idx < dbresult.length); idx ++) {
                      var posi= dbresult[idx];
                      posi.lon = posi.lon.toFixed (4);
                      posi.lat = posi.lat.toFixed (4);
                      posi.sog = posi.sog.toFixed (2);
                      posi.cog = posi.cog.toFixed (2);
                      var info=util.format ("> -%d- Lat:%s Lon:%s Sog:%s Cog:%s Alt:%s Acquired:%s\n"
                      , idx, posi.lat, posi.lon, posi.sog, posi.cog, posi.alt, posi.acquired_at);
                      socket.write (info);
                   }
                }
docs: Ask DB backend to display on telnet socket last X position for devid=yyyy