(keitai-l) The real reason mobile phones have cameras

This site claims to know the real reason why mobile phones have
cameras:

http://www.mobileasses.com/

I wonder, do phones in Europe/USA don't make a sound when you
take a photograph? In Japan you have to go all the way to Akihabara
to one of "these shops" where they permanently switch off the sound
of your Keitai for you.

Juergen

PS: I found the link in a Blog, which was linked from another Blog
which was linked from another Blog. But I save you my link trace and
just show the final link.