So, here's a new one: Samsung has apparently halted the TouchWiz UX update for the Galaxy Tab 10.1 in order to "assess progress and ensure it's a positive experience for customers." We're not entirely sure what that means on a realistic level, but I'll go out on a limb and assume they found some sort of bug -- possibly one that is making some Tabs unusable by scrambling the graphics.
Naturally, since no real reason was given, we pinged once again to see if we could get more info -- like before, no details.
At this point, we can only speculate what the issue could be -- but if you're a Tab 10.1 owner that has yet to get the TouchWiz UX update, now you know why.
As always, we'll keep you posted as more information arises.