Holy.... This is looking better and better every day.

Check out the early pics of the 1070 and 790, painttoad - both are using the same new design style as the 990, and both list nothing under the model number. It's definitely big, but based on the 9xx numbering it would make more sense for it to be a surround sound processor - a replacement or big brother to the 950. The height is definitely significant, though. Maybe the balanced connections that they mentioned using on the next SSP (to go with the 790's balanced inputs).