Hi,
I'm no expert on the matter, but from what information I was able
to gather from various electronic store homepages, a dual tuner
should run around 10,000yen = $90.00 in Japan.
That being said, unless SCEI has something up their sleeve
software-wise, the single tuner is most likely a cost saving measure.
Japanese forums point to somewhat high broadcast satellite
licensing rights as another possible reason for the exclusion of a
dual tuner.
As I stated in my previous post, users can still utilize their TV
tuner to view a separate channel while the PS3 records another.
SCEI may have considered HD television uptake in Japan as well
when deciding to go with a single tuner.
A little disappointing, but attractive enough for people without
a DVR like me.
Oninotsume