Check this out:

http://www.ncsxshop.com/cgi-bin/shop/HPP-45.html

Except I would guess... that if you were the sort of person to be looking at porn on the morning commute, you wouldn't really give a damn who saw you.

Heh... amusing.  So, is it common for the Japanese to use the PSP as a porno theater?  Also, I must agree with SonicPanda! 

cheeers,

-avatar!

There once was a time cheap TFT screens behaved that way for free...