E3 2005 is the E3 event in 2005 where the Revolution product was fully announced. The Wii Remote was intended to be demonstrated at E3 2005, but this demonstration was delayed to TGS 2005. The E3 2005 Revolution Case originates from this show.
Very little of the Wii's hardware and software was shown at this point, with only an empty shell prototype console case being shown along with vague mentions of franchises which were to feature on the system. The Virtual Console service was also announced.