Samsung Galaxy Tab 10.1 TouchWiz UX update paused for some bug-squashing0
Now it seems that Samsung has put the update on hold for the time being, saying it needs to ensure a positive customer experience, which is corporatese for "we need to pull it in and squash some bugs". People at XDA-Devs have been complaining about graphics issues after the update, so that might be it.
The company didn't announce that officially, but it answered a question on Twitter that the Touchwiz UX update for the Galaxy Tab 10.1 has been paused for now to "assess progress". While you wait for the semi-mandatory update to reach your tablet, have a look at our hands-on video of Samsung's Honeycomb overlay below.