I just ordered a PRS-600 and now this comes into the news. (I live in Korea BTW.)
- 6 inch screen with QWERTY buttons
- Supports PDF, epub, txt, ppt, doc, xls and other formats WITHOUT conversion.
- Supports Comic viewer for comics
- Expandable to maximum 32GB with memory slot.
- Up to 9000 page turns
They are affiliated with Kyobo, the biggest book store in Korean, and also with other learning contents company. They are working on contents from US, Russia, Europe and Australia.
The pre-order starts on 16th September in Korea. The price is not officially announced, but it seems it will be 350,000~400,000 KRW range, which is around 300 USD.
They are also talking with retailers in Russia and US. iRiver says the product's focus will be overseas markets so I expect it to be released in other countries soon.