Computing giant Microsoft has completed the take-over of Perceptive Pixel, a firm that specialises in making large multi-touch wall-mountable screens.

BBC: Microsoft buys large-screen maker Perceptive Pixel

"I'm excited to share that all closing conditions for Microsoft's acquisition of Perceptive Pixel (PPI) have been met, and the deal is completed, " wrote Giovanni Mezgec of the Office division.

BBC: Microsoft buys large-screen maker Perceptive Pixel

He believes this sort of approach will have far wider appeal than today's windows and mouse-based systems, and he has founded a start-up, called Perceptive Pixel, to commercialise the technology.

ECONOMIST: Computer interfaces