I'm going to unload the D7000 and have pre-ordered a D7100. It seems to me there will always be 'issues' with a release of a camera so why not have the fun of being part of the revolution. Waiting until, the focus, oil, colour, flash, and other things that will be perceived as wrong are 'fixed', could take forever. The only single concern I have is the buffer depth. Everything else should be enjoyable. I've been hanging out for the D400 but will worry that if it is released.
.. I set out to discover the inventions of God. -John Muir