I know it's not one of the big two, but Pentax is my camera maker of choice and I figured I'd throw up their two announcements here. First is the K-5, a new pro level body with a 16.3 mp sensor, ISO 80-12800 (@6-7FPS) and 1080p video at 25FPS. Second is a nice addition to their lens lineup the 18-135 F3.5/5.6 zoom, what appears to be a nice walkaround lens, and other than being a bit slower, could be a great replacement for my 16-45 f/4.
Canon and Nikon people, you may continue about your business (though with the vague feeling that maybe, just maybe, in-body shake-reduction that allows you to have 50 year old lenses with 2-3 stops of shake-reduction is a good thing and something you're really like to try out.... Just sayin' :)
Update: DPreview has the news and a short hands on the K-5.