With WiDi just starting to be used daily for wireless teaching, BenQ does it one better with the first projector that has the Wireless Home Digital Interface built-in. The W1500 projector can get its 5GHz video signal from a Bluray player, set-top box or gaming console. Unfortunately, at the moment no notebooks have WHDI. There are computers that have add-on connection kits, though. Based on Texas Instruments’ DarkChip3 DLP technology, the W1500 projects full HD material, is rated at 2,200 lumens and costs $2,300.