The article seems to indicate that the IAU is leaning toward this view as well:
"... Charon, once considered a moon of Pluto but now described as its double planet ... "
Ooh, thanks for the ping! I hope this proposal is approved. I like it!
I think we should wait a few years for the probe to reach Pluto before we get used to calling it a double planet. That probe is going to give us the best show in decades, in my humble opinion. Tiny Pluto will be cratered, it is already known to have three moons, and probably has a mini-belt of asteroids of its own, hundreds or thousands of tiny moonlets. All of Pluto's moons are captures IMV; its distance from the Sun means Pluto's sphere of influence is wider, making it easier for capture to occur, despite its small size. :')