It never rains, but it pours. In addition to the long, long awaited Android 4.0.4 update for the Galaxy Nexus, Verizon is sending out a software update for the pretty and pricey Galaxy Tab 7.7. No, it's not Ice Cream Sandwich (though that should be coming eventually) but you'll want to go ahead and install it if you want to stay on the official release path.
The only noticeable addition for the Galaxy Tab 7.7's software is compatibility with IPv6, a future-proofing precaution that makes sure the tablet will be compatible with websites and services that upgrade to the newer Internet traffic protocol. There may be other changes under the hood, but if there are, they're too small for Verizon to note them in their official release. The software build has been updated to FD01.
If you're a long-time Android user, you know what to do. If not, go into the Settings application, tap "about tablet" and then tap "system updates". You should see a download package available immediately - if not, then just wait a day or so for Verizon to roll it out to your area. So, Samsung and Big Red, when's that Android 4.0 update coming, eh?