Figured I'd express my concern over this issue also. I have a 2012 Focus SE hatchback (6 speed select shift transmission). My problem is the same as jimmyt's, but at a different speed range. I hear/feel a rhythmic hum right at 45 mph up to 60 mph, but don't hear/feel it at any other time. Can't tell if it's both front wheels or not. I can feel the hum through the floorboards and hear it from the front of the car. I noticed it on my first highway drive when the car had about 250 miles on it.
Just dropped it off at my local Ford dealer (Ford of Clermont) about an hour ago. I'll report back when I have more news. Such a shame, my first new car only having 1000 miles on it with a weird problem like this
Jimmyt, saw that you might have been getting new wheel bearings around 2/8 from another post. Any luck getting the issue resolved?