A few things:
Terrible article with no credibility. Nothing suggests that KH 3 is even being thought of at this point. It's a shame that Square Enix hasn't done anything at this point in the PS3's life cycle.
Also, we can bet that KH 3 WILL be multi-plat, it's almost assured with pressure from Nintendo, and the $$$ with the 360. In any case, I wouldn't care as long as the game is fun.
Lastly, the only good points made in the article were the worries that Disney will put Star Wars in the game. The Pirates of the Caribbean world in KH 2 was awful and stuck out like a sore thumb. If KH 3 has ANY Star Wars in it, I will not play the game. What KH needed and needs is more Final Fantasy influence than anything.
So, let's hope someone gets their act together and may be we can have some closure on KH 3, and maybe the story itself.