Hewlett Packard gets into the multi-touch display circle with the release of the HP Compaq 21” Multitouch L2105tm display. It is now available and is Windows 7 certified. It features a 1920x1080 resolution, a 1000:1 contrast ratio with 4ms response time and the usual interface connections like VGA, DVD-D and HDCP. This HP multitouch display ...