I have been testing 3 different distributions of XBMC/Kodi images for WandBoards on my Quad to decide which I will use. I maintain a popular HTPC Guide (based on Kodi) and I plan to add a new section with instructions on how to use multiple WandBoards as clients to stream content from a back-end server (MediaPortal) over a home network. This setup supports full DVR functionality for recording OTA TV as well as all of the other features of Kodi and MediaPortal. My testing includes streaming content from my MediaPortal server, using the EPG, Music visualizations and even IR remote control. All of this works on these 3 distributions. http://montgomery1.com/htpc/
If you want to use Kodi on a WandBoard, this is a good place to start. Don't worry about the fact that the official websites for Kodi, OpenELEC and GeexBox offer little support for WandBoards. All of these actually run great on WandBoards! And they are easy to install using these pre-compiled images.
The first and oldest image I tested is XBMC 13 on Yocto 1.5 from a developer who led the early XBMC porting efforts to the i.MX6. He maintains an informative blog: http://stephan-rafin.net/blog/
But his published image is about two years old and it's not clear if it is still being worked on. It has some problems. The CPU usage is very high and the board runs hot. It still uses the old Linux kernel version 3.0.35.
The second distribution I tested is called Geexbox and is available from right here on the WandBoard site: http://wandboard.org/images/downloads/xbmc-geexbox-wandboard-20150518.zip
GeexBox includes XBMC version 13.2 and Linux kernel version 3.10.53. This image works better than the first. The CPU usage is lower and the board runs cooler.
Finally, I tested OpenELEC 6.0. This includes XBMC version 15.2 and linux kernel version 3.14.36. This is substantially improved over the earlier images and it runs the best so far, with the lowest CPU usage. http://www.xoddark.com/Public/openelec/build/6.0/OpenELEC-imx6-wandboard.arm-6.0-6.0.0.img.gz
OpenELEC and GeexBox are different projects, but they look very similar. If you know of substantial differences, please comment.
I will update this thread as I do more extensive testing. If anyone knows of other important issues with any of these images or if you know of any other distributions of Kodi that are available for the WandBoards, please share them here.