After watching the Crimson Trace DVD, I agree lasers have there place, can be an asset in non traditional, offhand, on your back shooting positions.
For me, in the land of sun and shorts, its tough to add anything on the exterior of a "mousegun".
I am going to put some CT's on my M85 Snub though, as it won't change the holster, but the pics I've seen for the laser attachment for the P3AT, would make it a wee bit "bulkier" for pocket carry, in shorts, and my nemesis holster makes it look like a wallet, instead of a holster.
Just my .02 cents. I'm looking forward to a range report eric.