Photos: Microsoft's rivals in touchscreen tech

Microsoft garnered lots of attention when it unveiled the Surface tabletop computer, but it isn't the only company interested in multitouch interfaces. The technology has found its way into computers large and small, ranging from a wall-sized machine from HP (pictured) to Apple's iPhone.

HP's giant multitouch computer was on display at The Wall Street Journal's D: All Things Digital conference last month, just a few yards away from Microsoft's Surface.