Does no one remember what happened with GIF? It got so widely adopted that is was impossible to stop using it. The other image format supported by the web was JPEG, which wasn't suitable for non-photographic images because of it's lossy nature and imprecise control over colour.<p>And then suddenly, Unisys asked for lots of money from everyone producing software which wrote GIFs.<p>Those that do not learn from history are doomed to repeat it.