pentax - Are there any radio flash triggers capable of P-TTL?

All the popular radio TTL flash triggers, like PocketWizard or RadioPopper, seem to be only available in Nikon and Canon flavors. Are there any models capable of transmitting Pentax P-TTL data?

Answer

http://www.aokatec.com/

This radio trigger appears to support P-TTL and high-speed sync.

I found this in this dpreview forum thread: http://forums.dpreview.com/forums/readflat.asp?forum=1036&message=40799541&changemode=1

See also http://www.lightingrumours.com/aokatec-ttl-trigger-for-nikon-canon-sony-pentax-1875.