“[Our] goal is 200 million users of Ubuntu in 4 years. We’re not playing a game for developers hearts and minds – we’re playing a game for the worlds hearts and minds. and to achieve that we’re going to have to play by a new set of rules.”

http://www.omgubuntu.co.uk/2011/05/mark-shuttleworth-deliver...

Also, re: screensavers -- upstream GNOME removed that ability, and Ubuntu inherited the behavior. From what I understand, we're putting it back.

[canonical employee, speaking on my own behalf]