[fedora-arm] BeagleBoard-xM rootfs guide

Hi all, I've just completed a first draft of directions to install the Fedora 12 rootfs on a BeagleBoard-xM. https://fedoraproject.org/wiki/Architectures/ARM/BeagleBoardxMSDCard I've used this process to load the Fedora 12 rootfs onto two BeagleBoard-xM boards so far. If you find any mistakes or unclear sections, or know of a better way to do things, feel free to edit the page and correct it. I'll be refining the guide over the next few days as well. Rich