160 Million Pixels
Seitz Phototechnik AG has an insane 160 megapixel camera that they are now taking reservations for. Worried about not having enough space on your CF or SD cards (or needing 100 more!)? Don't worry, they've set it up so you can transfer directly to a computer (like a Mac Mini) via gigabit ethernet like so:

And in case you're wondering what a 160 MP camera looks like, here's a picture from their site.

I read this over on John Nack's blog and had to repost. Of course, this begs the question, spend $36,653 on this camera or $159.95 on Genuine Fractals? :-)

