NRANews’s Cam and Company [ iTunes Link, 1/14/10 episode ] let slip the news that Ruger would have a LCR chambered in .357 Magnum on display. I am sure that this is the wheel gun that Michael Bane recently blogged about!
The original .38 Special Ruger LCR was announced at SHOT Show last year.
[ Many thanks to Nick for alerting me to the news. ]