Well I did, and it finally has all the functionality I have become accustomed to in the normal Facebook. Be aware, I can now comment on your comments and posts from anywhere! So go ahead, update your Facebook. Well worth it!
And remember how I used to say: only install applications to your iPhone from iTunes? Well since I have had iPhone software 2.1 I have downloaded and installed from the iPhone App store with no problem. So go ahead, update your Facebook from within your iPhone… The installs and updates are way quicker, no more waiting for the progress bar to fiill that last 10%.