original source: http://tieba.baidu.com/p/4333384752
ocn discussion: http://www.overclock.net/t/1589733/logitech-g...an-confirm

interesting notes:

rgb led obviously

ambidextrous shape with side buttons on both sides. it appears you can also swap out the buttons for a flat cover on either/both sides.

wired/wireless with rechargable battery. 24hr battery life with lighting, 36hr without.

pmw3366 (inferred from 200-12000 dpi range and sensor lens/hole)

the OP in the chinese thread mentioned 107g. since removing the battery requires removing screws from underneath the mousefeet, i would assume that this means 107g with the battery, without the cable.