I just built a Persistent f16-SoaS-i686 USB that boots on a G1G1 XO-1; slow but works correctly. I have not successfully booted it on the XO-1.5 but I am still testing. see for details: http://wiki.sugarlabs.org/go/Community/Distributions/Fedora-SoaS#f16-SoaS_boot_USB_for_XO-1 Tom Gilliard satellit_