Just purchased a 2011 250 4X4 Super cab, this is my first Ford and so far I love the truck. I have noticed that you need to re-train your foot to keep from hitting the gas and brake at the same time. It's not a problem once you are aware and take care.
My 08 Super Duty was worse about this than the 2011 is. Maybe I've just retrained myself better but I have had zero unintended accelerations. Watch yourself--if I'm not to old to re-learn habits nobody is.
Had it happen on my 2005 F350 and on my work 2011 F350 with work boots - just caught the corner with the side of my boot. Pedals are too close together, but our safety officer said it wasn't a truck problem (despite three other complaints), gave me a long lecture about driving with care and explained that it was likely because I did not have the adjustable pedals adjusted correctly. I have four other vehicles, and have driven for 40 years, and this is the first time this has happened, but I am remedying it by trimming 1/2" off the lower left hand corner of the gas pedal - it's plastic, and not a structural piece. Dremel to the rescue! Ford, spread those pedals out!