Facebook Home prototyped in Quartz Composer
news.layervault.com
news.layervault.com
After that Cooliris and now back to entrepreneurship with Everpix :)
On the other hand, why doesn't anyone ever do a tool startup anymore? Its all about content production and consumption these days. If say, you did PixelShox in 2013 (assuming QC didn't exist), could you get funded as a YC startup?
http://www.polhosting.info/web-archives/pixelshox_technology...