I’d like to know that too. Seems like they all have this lag time that drives me nuts. Don’t you just love those pictures of the subject walking away or turning away when the camera actually takes the picture.

The only thing that would keep you from taking a quick picture on pocket cameras is the focusing time (since they are mostly auto focus). I know that the canon models have two steps for the button that takes the photo. If you half-click to focus on your subject, the second half should be instant.

I know it’s below your desired resolution, but I have a Canon PowerShot SD450 and it’s the best little camera. I’ve had a Kodak EasyShare and a Canon PowerShot SD100 previously, and the SD450 blows them both out of the water. The shutter lag time is very short (the camera is really responsive, with the exception of its having to pause to charge the flash during rapid inside photo-taking), it has a nice, big LCD screen, and it has wide angle and macro built in. The only con is that Canons at this level give a “soft focus” effect, but I remedy this with post-processing. I’m a huge Canon fan.

A really useful site to compare various cameras is Digital Photography Review. Maybe check out the SD850?

There is that one that Ashton Kutcher did the commercial for, it was before the touch screen one, i forgot what it was called but i know it was from Nikon and in the commercial they advertised that it was fast.

here it is.
its called the Nikon S610