Here is an interesting article about the Japanese launch. Apparently Sony made some comments about the success of the launch at the Electronic Book Summit 2010 in Tokyo earlier this week. Supplies of the 650 model are running low there like everywhere else. They did not expect the readers to sell so well at bookstores, nor did they anticipate such demand for accessories.
http://techon.nikkeibp.co.jp/english...101217/188211/