I have the LCP and like it. I haven't experienced any failures with it and it is as accurate as I am. (not that I'm a crack shot). A friend of mine bought the SW Body Guard the other day and I haven't shot it yet, but so far I like a couple of the features that I didn't get with my LCP. I like the sights better and I like that the slide locks open on the last shot. If I remember I'll post again when I get a chance to shoot them both on the same day and compare.
I don't think we'll see the 380 go anywhere. It fits a need in the CCW world nicely.