hi motifmike
i had the same issue.. i found out that connmand was running and managing the network connection so the config file in /etc/network/interfaces was completely ignored. i switched back to the old networking init script by deleting the link to the connman init script and replacing it with a link for the networking init script. here are the commands that will do that on your gallileo:
rm /etc/rc5.d/S05connman
ln -s ../init.d/networking /etc/rc5.d/S05networking
then reboot your gallileo and it should be reachable with the static ip you gave it. worked for me.