This trip to Beijing, I notice the immigration counter has a new device (above). Yep, you can give instant feedback of the officer who is serving you. Customer Service @ Immigration. Wow! Guess Beijing is taking Olympic 2008 very seriously, making sure they have the best in front of the visitors.
Anyway, it is a refreshing compared to what I get when I go US, finger print and 100% (what you mean it is random?) full check, every time.