See
http://www.coolreaders.com. Size, positioning of buttons, is this a rebranded Cybook G3 or what??
EDIT: Ah, looking at the specs there are quite a few differences... Only the form, then...
Cybook:
http://www.bookeen.com/specs/ebook-hardware.aspx
Cooler:
http://www.coolreaders.eu/specifications.asp