I'd personally like to see S&W make the following. A modern update to the classic french LeMat percussion piece. It would have to have a 10-round cylinder chambered in .45 Long Colt, and the second barrel chambered in either .500 S&W Magnum, or .454 Casull. This would combine the reliability of a wheelgun with a better round count than single-stack 1911s, plus, you'd have the Magnum round for hard takedowns. If S&W made something like this, the X-frame would be a great base to build upon. I'd open-carry that monster in a western-style rig with belt-pouches containing 10-round moon clips for quick reloads. Sorry for resurrecting an old topic.