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!"
I agree that for your average consumer this is not very interesting and I feel that this is really just an extension on the tomtom buddies feature that the current Go range already has. That said for businesses this will be very helpful. There is not too much more information on this but have found a good explanation of the features here - http://www.easydevices.co.uk/pp/Dedicated_GPS/TomTom_GO/TomTom_Go_715.html