I replaced my air filter with a K&N today and when I pulled out the 'MotorCraft' filter out came a very orange filter, with orange foam on the sides. The spitting image of a Fram... Does Fram OEM for Ford?

Nope, Motorcraft filters are orange have been for many years. There is usually printing on the end that will have a part number and sometimes a logo.

Ducit Amour Hybridae
Mark Smith
Master Certifited Technician
Tempus non reparabilis fugit
"It isn't pollution that's harming the environment. It's the impurities in our air and water that are doing it."

Best Tank 35.0 MPG

Not sure about gas engine air filters but I own the 6.0L turbo diesel in a 1ton PU and the Donaldson air filter from the factory is the ABSOLUTE best at filtering fine dust and K&N filters are about as bad as you can get. They pass so much dirt that the turbos are worn out or damaged in about 20K miles.

With this in mind I would think long and hard before swapping the factory FORD filter for ANY aftermarket air filter.

While the K&N "HYPE" seems to make sense often there is more to it than that. I have found that you can get more air flow but it comes at the cost of poorer air filtration.