I still use my Nikon D90 with fantastic results. Unless you are printing really large photos, the MP is irrelevant. Great looking camera with some excellent features though.
It does look like quite the beast! It's amazing what they can do nowadays. Way more than I need though. My 16mp M4/3 is generally more than I need. I downsize the files from it by 75%, so people on slow connections don't complain about file sizes. Seem like it would be like driving a Bugatti Veyron to work, when a Buick would get me there just as ell most days and more comfortably. Don't get me wrong I would love to play with one, but I'd probably need a better computer to handle it. Maybe in another 10 years or so I'll be ready for these kind of specs.