Seeing as though WotC isn't likely to ask for the article...
"Dragon Wings" is a feat I created that requires being a dragonborn trained in Athletics. It allows you to jump vertically as you would horizontally (i.e., in squares rather than feet), and as if you had a running start. You could also use Athletics, rather than Acrobatics, to reduce the damage from a fall. So, at first it's merely a jump booster.
Later feats allowed you to use your wings defensively, or gave you power swaps to fly for a short distance and make an attack during your flight, or allowed you to force flying opponents to land by knocking them prone (flying + prone = fall).
At paragon levels you could take a power-swap feat to gain a fly (clumsy) speed until the end of the encounter. You can use it more often than a wizard can cast Fly, but you pay for it with a penalty to attacks and defenses from the clumsy flight.
At epic levels you could take a power-swap feat to gain an overland flight speed that lasted for a few hours or until you took an extended rest.
All of it was wrapped around the concept of the Winged Knights of Old Arkhosia, who battled the flying devils of the Turathi army. Once a true knightly order of the dragonborn, today it is merely a band of individuals trying to recapture and restore the noble ideals that once marked the philosophy of Arkhosia. I looked at the flight options available to some classes (Fly and Mass Fly for wizards, Wings of the Fiend for warlocks, etc) and tried to make something equally powerful for nonmagical dragonborns.
I created these as power-swap feats because I wanted them to be open to any dragonborn willing to trade a little class power for more mobility in battle and out of it. That's why I didn't make the wings into a Paragon Path or a Multiclass feat.