Thought it might be helpful for people with orange phones to test their connection and to help solve problems.
It gives information about whether your connecting using 3G or 2.5G or whatever.
I've also noticed it says "Free: Y" on mine, i'm guessing this may be to do with orange planning to make orange world free. Although it seems pointless if it just tells you whether the technical info page is free or not.
There is also a link which shows you which http headers are sent when you request a webpage.