Update: Now that Ice Cream Sandwich is out in the wild, the community is already circling back to provide a rundown of what more timid users may expect. Most notably, Samsung's Premium Suite for the Galaxy Note isn't included in this build, and while TouchWiz is said to crash upon first boot and with the addition of a Google Play account, reports suggest that these are one-time glitches. Otherwise, much of the system is said to be in excellent shape. As for the EXE that we'd mentioned, it's an Odin one-click file that's designed to make the installation rather painless.
[Thanks, Tyler]