Available now is a free developer preview of VNC Wayland that allows their flagship VNC product to have the VNC server running in a Wayland environment for remote desktop capabilities using the Weston reference compositor. Like RealVNC's other high-end VNC offerings, it will ultimately become a commercial product (though the basic version is free), but the developer preview is free for helping out the Wayland development community and hopefully yielding feedback and testing. This current RealVNC x86/x86_64 Linux snapshot depends upon the latest Wayland/Weston Git code and RealVNC will be re-basing against future Git revisions. The VNC Server for Wayland can run in user-mode or virtual-mode.
In terms of why RealVNC has been quick to play with Wayland, Andrew Wedgbury of the company says, "our software supports a wide range of platforms and technologies, and we see Wayland as an important emerging technology. We rely on the screen-share module in Weston to support remote access to existing Weston desktops, and we want to encourage the developers of other Wayland compositors and desktop environments to implement compatible mechanisms to allow remote access (not just to support VNC, but any remote access system)."
The RealVNC Wayland version can be downloaded from this new product page while more information is available via this mailing list post written this morning by Wedgbury.