For those that are interested this was just posted.

Yoshi P interview with Playstation Blog

Interesting news for those waiting on PS3 version

We’re about 50% into the development of the PS3 version, but it’s pretty much how it’s going to look on the console as well,” explains Yoshida. “It uses the same new graphics engine we built just for this game. This summer we’ll have an opportunity to show the PS3 version.”
To me it seems they have started a slow push towards getting exposure for the game at this E3 but seems it will go quite till August.