Saw this today from Mas Ayoob:
http://backwoodshome.com/blogs/Massa...new-gun-light/
(Credit to http://www.saysuncle.com where I found it)
It looks pretty neat but I definitely see potential for holster problems along with the fact that the grip is considerably longer than the typical j-frame grip.
Link to some more pics at Cylinder&Slide and whatnot:
http://www.cylinder-slide.com/index....&ref=griplight