Pretty slick! Never heard of Wheels until now. I've got the uIEC2SD adapter and always wanted to try GEOS with it. Sounds like you just flash the uIEC device with this new firmware and you're all set, huh? I know I've got a copy of GEOS floating around somewhere, but last I looked - didn't have the original w/ its box and manual. Happen to have 2.0 for C64 for sale Red?