Not much is known about the elusive N85, other than the fact that it looks like a scaled-down N81. Or is that scaled down N96?
Either way, Engadget was able to shed a little more light on the subject thanks to some new FCC documents. There'll be two versions of the N85, one without 3G and the other with 900, 1900, and 2100 mhz bands. Except the 1900 band is one part of AT&T's 3G network, so who knows where it'll fit in.
The FCC page doesn't reveal anything else of value, other than the SAR values: around 1.01-1.03 W/kg when used near the head and 0.65-0.79 W/kg when worn on the body.