Several people have pointed out to me that the D7000 prices are higher than the D90 prices, and they then use that to make the assertion that the D7000 is a model higher in the lineup than the D90. I'm not so sure that's actually true, even though Nikon themselves are implying that at the moment.
In the US, the D90 came out at US$999 at a time when the yen/dollar ratio was 106.71. The D7000 was announced at US$1199 at a time when the yen/dollar ratio was 84. The increase in US price of the camera is 20%, the increase in the value of the yen during that same time period is 21%. Coincidence? I doubt it.
The Brits are definitely getting hit a bit hard, as the price of the new camera is up 57% but the pound is only down 34% during the two year period between the D90 and D7000 intros. But those using the Euro seem about where the US is: 28% change in currency, 23% change in camera price. Update: a few people have calculated slightly different numbers than I did. I was in a hurry when I did the math, so I may be slightly off in the actual apples-to-apples percentages, but I don't think it makes a lot of difference: the overall price changes are in the ballpark of the currency changes. Given NikonUSA's proclivity to use xx99.95 prices, there would also be some rounding apparent, anyway.