I've got Italian press releases of both the Samsung GX-1S and GX-1L. Specs
are identical to their Pentax relatives, hence it is perfectly clear that
they are the *istDS2 and the *istDL2.
And, of course, both the Samsungs output .PEF RAW files.
Both them will be on sale in Italy next April. That will be quite a problem
for Italian Pentax importers, only having the DL for sale now.
Then, Samsung Italy is currently announcing the following items:
Schneider Kreuznach D-Xenon 18-55mm f/3.5-5.6 lens (Pentax DA lens clone)
Schneider Kreuznach D-Xenon 50-200mm f/4.0-5.6 lens (Pentax DA lens clone)
Samsung SEF36PXF dedicated flash (Pentax AF360FGZ clone)
Then, they are no shy to advice you to buy the following accessories:
Pentax AC adapter
Pentax IR remote control
Pentax CS-205 cable release
Dario