Let the hive mind of Engadget get that for you.
"We need a digital camera that can be switched on and fire off that first shot fast. It's not a commonly tracked statistic on any review site, and nobody seems to have this information for every camera. We were hoping other readers could inform us as to what small digital cameras can fire off their first pics in under a second (ideally under half a second). It needs to be small, but mostly, just really quick in operation. Thanks!"
To clarify, GestureTek Inc. built the multi-touch tables that deliver the multi-touch interactive experience at the New York City Visitors Center, including the finger tracking and object recognition software. Interactive leaders Videosonic managed the project. As the pioneer, multiple-patent holder and world leader in camera-enabled gesture control technology, GestureTek's multi-touch systems are in use around the globe. NASA's Marshall Space Flight Center uses the technology for collaborative games, certain T-Mobile stores in Germany use it for product marketing and Telefonica uses it on a multi-touch window for corporate branding. There's more about the New York City Visitors Center Project and oGestureTek's ther multi-touch surface computing installations at http://www.gesturetek.com/illuminate/businesscases.php