Superchips Blue Fin ECU Remap ???

yeh, fastchip (henk) do the rs tuner, ktec already do the rs tuning module which is also made by rs tuning, but the rs tuning module is the more expensive one.
 
But can I already buy the Ktec version !? And why is it cheaper ?
Do you have some experience with the RStuner module, Im realy interested in one of these...