On twitter Kojima said Microsoft's Urada-san and Yonekura-san stopped by Kojima Production studio for a presentation

http://twitter.com/Kojima_Hideo/status/15165322483

New 360/Natal/Wave's game perhaps...we'll see on E3

Not surprising, didn't Kojima heavily praise Natal after he first tried it out?

I think it's a Natal game because he calls it his secret project.

I also think this will be a Natal game. He was heavily interested in the tech of Natal. If I remember he praised above every other motion device.

Cannot wait for some more information to surface for this. I also think its a natal game (because everyone else is saying that). 

It will be interesting to see what he is gonna be offering at E3.

The rumor is that Sony is going to show Rising. Castlevania lead platform is the PS3.  So I don't know what he showed Microsoft.

ok?

Rising? :S