Problem is... arent any SATA 3 controllers out there... or rather, yes, there are a few prototypes, but it will be a while before they enter the main market. Kingston doesnt make their own controllers, or RAM for that matter, they just "select" and "glue". So until there is a working provien SATA 3 controller available for OEM there wont be any SATA 3 SSDs.
Just wait a few months and I'm sure there will be plenty. If you google SSD SATA 6 controller you will see news of their arrival (6GB/s)
... some things in life just drive you bonkers. Especially the rubbish you see in forum posts