That actually made me laugh. I was just having a discussion with a colleague on this matter. He suggested that we don't need to know about the OS these days wit

That actually made me laugh. I was just having a discussion with a colleague on this matter. He suggested that we don't need to know about the OS these days with Heroku, Azure, GAE etc. My argument is that is fine until something goes wrong or you need something slightly outside the comfort zone of those products. comes down to generalised knowledge versus product knowledge.