The Sanyo PLC-WL2503 isn't the first whiteboard-less whiteboard solution we've seen -- in fact multi-surface projector interaction dates back at least as far as 2007. As for a projector with built-in interactive capabilities, well, Epson's BrightLink 450Wi has been on the job since last year, albeit at a much higher price: the Epson projector costs $2,200 while this Sanyo comes in at about $500 less. Both tout short-range projection: the BrightLink provides 80-inch displays from two feet, while the PLC-
