Yep. Posting this from my upgraded Transformer. So far, so good. Asus has updated at least some of the built-in apps as well (on my first pass through, I noticed that MyLibrary has a slightly different UI).
I ran into a problem. An application that I purchased from a prticular dveloper stopped or could not be opened with ICS 4.0.3. Only from thiat particular developer. Otherwise, it looks great. Even my laggy live wallpaper (Kohi Aquarium) runs smoother where I can now drag the icons with less "friction" so to speak.