Logitech Chief Guerrino De Luca isn’t going to sugarcoat the gadget company’s troubles with the $300 Logitech Revue, which it introduced last December. At Logitech’s investor day Wednesday De Luca said the Revue was a mistake that will cost Logitech $100 million in operating profits. The set top box was built around Google‘s Google TV software, which remains a work in progress. We “executed a full scale launch with a beta product and it cost us dearly,” De Luca said.