Samsung published a list of devices that will be receiving Android 4.0 Ice Cream Sandwich updates in the future. AT&T devices include: Galaxy S II, Galaxy S II Skyrocket, Galaxy Note, Captivate Glide, Nexus S and Galaxy Tab 8.9. Sprint Galaxy S II Epic 4G Touch users can expect to join Nexus S 4G owners in enjoying ICS in the near future.
Tablets: Verizon's Galaxy Tab 10.1 and 7.7 will be receiving 4.0 updates, and the Galaxy Tab 7.0 Plus, Galaxy Tab 8.9 and 10.1 Wi-Fi models have also made the cut.
There is no information on T-Mobile but Samsung did note that they're in close communication with the carrier and will provide updates as they have additional details to share. Samsung users should bookmark the official list and check back regularly for updates.