have we had cannibalization? The answer is 'yes.' We're clearly seeing cannibalization from iPhone and, on the other side, from the Mac. Of course, as I've said before, we've never worried about that. It is what it is, that will play out, and at some point it will stabilize. I'm not sure precisely when, but I'm pretty confident that it will. The IBM partnership I think is in its early stages in terms of bearing fruit here, but everything I see I like on it, I'm a big believer in the ability for iPad to play in a major way in enterprise. So I'm looking forward to see that play out as we move forward.When you look at the underlying data, it makes you feel a lot better than the sales do. Things like first-time buyer rates, the latest numbers from the U.S. are like around 40 percent, and when you look at China they're almost 70 percent. These numbers are not numbers you would get if the market were saturated, so I continue to believe - even though I've seen different people write that - I think that theory is not correct. We also see usage numbers that are off the charts, so far above competition, it's not even in the same planet. And we see customer satisfaction at or near 100 percent. So these kind of numbers, along with intent-to-buy numbers, everything looks fantastic. So my belief is that as the inventory plays out, as we make some continued investments in our product pipeline which we're doing, that we've already had planned and have had planned for some time... I think still, I believe the iPad is an extremely good business over the long term. When precisely it begins to grow again I wouldn't want to predict, but I strongly believe that it will.