http://forums.crackberry.com/f33/new...1-179-a-18391/
It is free. just follow the instructions in the post (this post is a sticky at the top of this forum).
I havnt found any great advantages so far except to be able to say "I have the latest os"
It says "chinese" does that mean that it is in the chinese language? What does the "Chines" mean? Once downloaded, are there instructions for the instillation?