Interesting, "AF microadjust" with a 20 lens memory.
Long overdue IMO, the ability to adjust the AF accuracy and calibrate with your lenses will be one of the best enhancements. Depending on price I'm waiting for the 5D replacement. Rumours here...
I see local pricing is around $2500, which is way overpriced IMO. For that money you can buy:
Nikon D300 - Pro-level AF + weather sealed camera (50D has consumer AF and partial weather sealing).
Canon 5D - Full frame camera.
I am also skeptical about the implied big improvement from "gapless microlenses". Anyway, didn't Nikon claim this with their D300 and D3 sensors last year?