I know this is old, but there are a lot of these still around...

Zero-Knowledge Systems, who had a web page demonstrating reading the
(disabled) PSN, is gone, but Google search results are still saturated
with it. I can't find a web page that will try to determine a visitors
(disabled or not) PSN. Anybody know of one?

I tried to find an application that will display the PSN (when run
locally). I can't find one. Anybody know of one? (I found some java
code, but I don't think I need to learn how to compile and run java
programs for this, an already-executable application has to be
available somewhere.)

Thanks