The cube looks like a great product, but I was wondering if it will be pro quality. Your post helps.
GoPro actually does produce usable pro-quality HD video. Amazing for such a compact and simple device. Great colour balance, great lens, very little CA, etc., etc.
Cube is clearly not competing with that. It looks like a great fun product, and I reckon I'll buy one... but I won't be able to justify that purchase professionally!