The end of the killer feature

At The Economist Ideas Economy event Matt Mullengweg, founder of Wordpress, in an excellent talk about open source software, proclaimed the end of the killer feature. He asked the packed audience of high profile influentials how many people use Firefox, and how many of them have a plugin installed – and a good percentage of them raised their hands.

He's got a point. For many kinds of products, it's the end of the killer feature. Not everywhere, not for all kinds of products. But the trend is d...