I saw a Youtube video for loading the ICS interface without rooting which I did and it worked out fine. I can choose between the ICS launcher or the tired Kindle book shelves. Of course the kid (it's almost all kids doing these videos) recommended that you DO root your device to get more "functionality."
My question is, what does the Kindle Fire lack in functionality? Is it just the broader choice of apps that is attractive or is there something the Fire is missing. I haven't found anything that I needed to do that I couldn't do but I'm a casual user. What's lacking?