I came up with the same idea like two months ago in my head. But I was thinking about creating a web application for it. Unfortunately, I have no skills to do it, so the idea stays in my mind only. Two weeks ago I saw that @papa-pepper was writing about the similar idea so I knew it won't take long when someone will pick this subject up. I'm glad it happened. I wish I could introduce it as my idea, but still - I think this is a great initiative and I cross my fingers for it's success. Cheers :)