Just a little somethin somethin I'd like to add to this discussion. If you get a sharp razor blade, you can cut the button off so it doesn't protrude from the PV, but is still pressable. I did this with mine and it still works perfectly. It's slightly harder to press the button down but juuuust barely and you don't have to worry about it going off in your pocket!! Then you could get a leather case or something and wouldn't have to worry about it going off in your pocket. Just a suggestion. I did this with mine a couple of weeks ago and have had absolutely no problems whatsoever since. I suppose it's a bit risky and most likely voids any warranty, however if you're not concerned with such things, then I think this is a pretty solid solution for you. I tried it, it works, and now I don't have to worry about the button being pressed while in my pocket or even if I'm sitting right on it!! Just my two cents.
-Lee