T-Mobile support has let everyone know that an optional Android 4.0.5 update for the Galaxy Tab 7-plus should be ready and waiting in Samsung Kies tomorrow. Before we go any further, we know it says 4.0.5 -- that could be a typo or it could be a specially-built version from Samsung for the Tab 7-plus. I've reached out, and will let everyone know when I hear back.
What we do know is that it's Ice Cream Sandwich, which T-Mobile and Samsung feel is a drastic enough change in the user experience to make it an optional install versus pushing it out to everyone. We hate Kies as much as you all do, but we like choice so we won't ding them too much this time.
Anyhoo, you'll be updating to Android version 4.0.5 / Software version T869UVLG7, which will be required to access Music Hub after August 27, 2012. You'll need to have the latest version of Kies, and at least a 50-percent charge, See the full details at the source link.