Tanaka never divulged more than he had to. Yoshi-P is constantly telling us every time he sneezes.
I <3 YOSHI.

In more seriousness however, i don't care how much content is done but not released yet, October is too soon.
There is no way this game is even remotely ready for a PS3 launch.
If they launch it this October, we're all screwed.
October 2012, fine...

Anyways, i agree with some of the other posters.
We'd know a lot more from Yoshi by now if October is real.