This is must reading for all Kindle Fire users, especially those considering rooting. My hat is off to the author, kinfauns, on the XDA Developers site. It is very informative. Don't overlook the comments for more in depth coverage.
While I do in fact love that guide, Kinfauns did a wonderful job in writing it and I do recommend anyone considering modding their kindle in any way read it; it is highly unlikely to be stickied as it links to another forum. Perhaps AC could benefit from a broken down rewrite (it is a little long winded and some users don't require all the information).