With Sony dropping the 20Gb model because of lack of sales, they are set to release a 80Gb model in South Korea on June 16th and will cost 518,000 won (US $581).They have also said however at this moment in time there are no plans to release it elsewhere and said this:
Washingtonpost.com
We all know they wont restrict it to Korean market for long when the prospect of making more cash comes into play.
The company decided to put a higher capacity hard-disk drive in the model sold in South Korea because of the nation's pervasive broadband Internet network, said Fukuoka. Sony is keen to see the PlayStation 3 used for entertainment beyond games and South Koreans are already used to a wide variety of online multimedia.
Washingtonpost.com
We all know they wont restrict it to Korean market for long when the prospect of making more cash comes into play.