Update: Per NFL PR, these designs are a hoax, not from Nike or the NFL. Still, interesting concepts.
Nike will be the new official uniform maker of the NFL starting in 2012. For many of the NCAA teams that they sponsor they made special, futuristic-looking uniforms. It looks like they are going to do the same thing for the NFL. Some preliminary designs have leaked out. There's not a whole lot of detail here other than that they have flipped the burgundy jersey and gold pants look that they re-adopted this year. The jersey has some background graphics. Can't see much of the helmet but it appears that the logo may be oval-shaped instead of round. Some of the other designs (Colts, Cowboys) do show helmets in some detail. Again, these are preliminary designs and they are for 2012 or later. But from what you see, what do you think?
Update: Here is another concept found on a different site: