I was going to say almost the same thing. This is what a designer thinks looks good but there is no solution to any problems here, just more problems that aren

I was going to say almost the same thing. This is what a designer thinks looks good but there is no solution to any problems here, just more problems that aren't obvious in a single screen-shot. It's the same problem as when as web developer gets the signed off design and realises that the whole design falls apart when any number of variable elements go in because the designer narrowed in on making a flat image look good rather than exploring every possible outcome of that UI. The biggest initial problem is exploration and sign-posting (making discovery of user objectives easier either explicitly or subtly). The is no room for sign-posting because everything is flat and white. Also the contrast looks good in a flat image, but would drive people nuts after a while (and would break most contrast requirements for accessibility). Don't get me wrong, it's lovely... but no one will ever produce a commercial OS UI like this.