Yes, Greenbook Inc. is a subsidiary of Netronix and they sold many EB600 ereaders in Taiwan. I've just bought a new "EzRead Touch wifi (special offer)" for about US$96 and like it a lot. The one you just mentioned was sold out in Taiwan already.
E60820, E60822(wifi): (sold out both)
http://www.ezread.com.tw/hardware_info/精靈180白
http://www.ezread.com.tw/hardware_info/魔力182
EzRead Touch (wifi) - Special Offer: (with ad during power on/off)
http://www.ezread.com.tw/hardware_in...pecial%20Offer