Today i had time finally to put my hands on the ODROID C2 that i bought a while ago (http://www.hardkernel.com/main/products/prdt_info.php) and i successfully installed Sabayon on it (w00t! it is really fast!). Just merged the changes in the ARM Github repositories for the images definitions, but a special ODROID release will follow soon :)
P.S. this odroid is joining our ARM cluster as well! Cheers -- Regards, Ettore Di Giacinto - Sabayon Project Lead