wow, i'm posting a microsoft link!
This is a tool that lets you take two shots of the same group - perhaps one shot has Sam blinking - and take the best parts from each shot and paint them into one photo. Apparently it is pretty cool. Although I've only seen screenshots. There's video of it on youtube.
I should mention that it is FREE... or I think it is. Oh, there's no such thing as a free lunch? Well I'll be honest... the cost is that you have to run windows to use it.
I feel better now.