Ideas are cheap, doing it is hard
“Simple ideas like this will naturally occur to many people. A small percentage of those will have the ability to execute on them. A small percentage of those will then actually do so. And an even smaller group will combine it with an otherwise interesting product, thus making it into something.”
http://ignorethecode.net/blog/2012/03/29/simple_ideas/
http://mrgan.tumblr.com/post/20123992987/prior-art-for-pull-to-refresh
