In 2009 Cypress Technologies announced a capacitive multi-touch controller for Windows Mobile and Windows 7. The controller offered a fast and accurate response to touch, and supported features such as a low-cost 3mm passive stylus input, proximity detection that enables ear/face/palm rejection, water proofing and a "hover" feature.
Cypress today announced that HTC chose TrueTouch for the HTC 7 Surround and HTC 7 Mozart mobile smartphones. While this suggests the HTC 7 Surround may support precise capacitive touch screens, it is also ironic that this seems to be one of the devices plagued by strange touch screen problems.