just relaying what I've read. Maybe you should call and see what they say.
personally, i think i'll keep it as my back up reason to get a replacement if i see they release a hardware revision that makes some significant improvements (although the build quality of this phone is very good, so i don't really anticipate it happening)
does anyone have a phone that doesn't make the noise?
and i'm not saying you're wrong, but it just sounds the way my point and shoot does when it's adjusting the exposure.
so maybe it's an exposure adjustment and not a focus adjustment sound.
i'll try to change the white balance setting from auto and see if it goes away.
EDIT: so that didn't change anything. but oddly when i put my ear closer to it, it sounds less mechanical and almost like it has a tone to it, like it was making the sound on purpose for some reason.
also, for people who are having sluggish performance, i set the MP setting down to 2MP, as all i use my phone's camera for is snapshots that would only be seen on facebook which will make the images far smaller than 5MP anyways. after putting it at 2MP (even 3MP was good) the camera performance is really fast.
it's a good compromise in my book until they get the software to handle the camera better, it seems like it's just a processing issue that needs optimization.