Epson on Tuesday announced that its PowerLite Presenter projector is now shipping. At the same time, Epson introduced the EX31, EX51 and EX71 multimedia projectors for small businesses, which replace the outgoing EX30, EX50 and EX70 projectors. Compared to their predecessors, the new projectors are nearly a third smaller and a fifth lighter, while increasing brightness levels to 2,500 lumens.