A Square Enix representative at E3 2010 has told RPG Site that Kingdom Hearts: Birth by Sleep is so massive

that if it had been called Kingdom Hearts III fans wouldn't have been any the wiser.

Speaking to us during our hands-on demo of the game before we headed in to interview some of the game's staff,

the Square Enix rep talked a little about the size of the game.

"This isn't just some handheld spin-off," he commented as he pointed out the number of save games we had to test out,

showing off different worlds and characters. "This game is so massive, it's easily as big the two PS2 titles. 

This game could've been called Kingdom Hearts III and the fans wouldn't have been any the wiser."

When asked on the existence of an actual Kingdom Hearts III, both the English-speaking reps and the Japanese game staff

were clear in our interviews. "Right now, Kingdom Hearts III isn't in development, but this is a popular series."

That sorts that, then. Perhaps fans can print some custom box art for Birth By Sleep that replaces the subtitle with a III. 

You can check out our hands-on impressions of the game through this link - and our interview with the staff will be up very soon

source

................................................................................................................................................................................................................

Is it me or does he sound like Kojima whenever he speak about "MGS: Peace Walker" xD

Anyway glad to hear that, September can't come soon enough

I've been saying this for quite a while. No way BBS was just a simple spin-off, since it has major plot developments and tie-ins with all the story.

Hopefully this'll end that discussion and we can all enjoy a pretty awesome main KH game come this September

The codename was "Kingdom Hearts Zero" iirc.  They should've just called it that to tie it in more directly as a "mainline" game, because it's too often associated with the spinoffs (CoM, 358/2d & Coded).

KH3DS is looking like it'll be a more "mainline" title too.

So the PSP got Kingdom Hearts III,  who saw that coming

It got KH0, not KH3.  PSP did get MGS5 though!

That's awesome now im really more excited for KH:BBS!  I cant wait to see how big of a game this turns out.  Nomura is King!!

I always though of it as a mainline KH. One of my most anitcipated games on the PSP.

Well according to SE its good enough to be KH III.  

it should have been called Kingdom Hearts Zero, since its the prequel to KH1..

would have been such a cooler name

Actually Birth By Sleep is an awesome name if you factor it's significance to the story that develops during it