Sony have announced a new full frame DSLR, the Sony Alpha A850. It uses the same 24.6MP sensor as their flagship A900, but the price will be lower ($2000 vs. $2700). It appears to have pretty much the same feature set as the A900 with a couple of exceptions. The Sony A850 has 98% viewfinder coverage, while the A900 has 100% coverage and Sony A850 has a maximum shooting rate of 3fps, while the A900 has a maximum shooting rate of 5fps. The A900 also ships with a wireless remote control, while that's an optional extra with the Sony A850.
At "just under $2000" (i.e. $1999.99), the Sony A850 is the least expensive full frame DSLR (unless you can find an original EOS 5D for less) and with a 24.6MP sensor, it's also has the highest pixel count (though only just!). The A900 received some criticism for somewhat high noise levels at high ISO settings compared with the competition (EOS 5D MkII - $2700, EOS 1Ds MkIII - $6500, Nikon D700 - $2400 and Nikon D3X - $7300). It remains to be seen if the Sony A850 can match the competition in terms of image quality and noise - it certainly beats them on price (and pixel count in the case of the D700)!
Here's the Sony Press Release: