10.
Is anything written in Qi?Yes Qi II itself! There
are a number of library facilities like Qi-Prolog and Qi-YACC which are
coded in Qi or Qi and Lisp.
11.
What's the difference between Qi I and II?
Quite a
bit; take a look here.
12.
Can I get help with Qi?
Yes,
there is a user group with over 150
registered members on Google.