Wayland packages have been in Fedora since 18 (it's at 19 now and 20 is to drop in under 3 months time). You can already start testing your apps to see how they work in Wayland, and it's on the roadmap to being integrated as the default. Gentoo and Archlinux also appear to have experimental support and plans to switch.
>the problem with Wayland is that one can't just 'switch' from X.
Does switching to a wayland compositor by default and using xwayland for the applications that still can't talk to it not sufficiently address that? At least as practically as is possible when replacing a popular piece of interoperable software with a large user install base?
