Since I am always on the lookout (and usually post about) guns that are friendly to left-handers, I thought I should mention something I just noticed.
The Smith & Wesson M&P has a reversible mag release so that it can be configured for either right- or left-handed use. Not only that, but it has an ambidextrous slide stop. The slide stop is something that no manufacturers ever seem to think about. To be honest, I never use it to release the slide. I always just do a pullback on the slide to release it. The interchangeable palm swells are also interesting, and it doesn't appear to be one of those guns with a monstrously long double-action trigger pull.
I'm not going to run out and buy one. I'm just sayin', is all.