I agree that the corners on the cross tailswitch are too sharp, yet I have never wrecked a pocket with it or cut myself on it. I don't wear tight trousers, which could account for why my pockets are intact. Most of the time I carry my light in a jacket or coat pocket, which may also account for why I also have never accidentally activitated the light.
As far as tactile feedback is concerned, I have no issues with it from a functional point of view. While it might feel more reassuring to have a definite click like the Novatac, I don't have any problems with misfirings. In fact as my LF3XT has gotten older, it seems to feel more responsive, which could be because the o-ring there is wearing down a bit, or perhaps my just adjusting to its feel or lack of feel.
According to Gary at EliteLED, LiteFlux is aware of the complaints regarding the sharp corners and should be able to correct the problem with the next run of lights. However, with the economy being slow, it might take a while to sell out on the first run.