Also what I don't get is why companies are entering this uphill battle anyways. It's like trying to inovate on chairs, just because someone fell down once. But

Also what I don't get is why companies are entering this uphill battle anyways. It's like trying to inovate on chairs, just because someone fell down once. But you can't fundamentally change the nature of chairs anymore. We've all agreed that they're useful. Doesn't mean that you can't invent a new type of chair! Email as a tool is mature and well working. Nobody denies that there could be more useful tooks when colaborating online than email. But upgrading and hence replacing or taking away email makes no sense. Why not develop something on the side if you're not interested in investing in protocol development.