The official site for Cave's upcoming shooter recently opened:
http://www.cave.co.jp/gameonline/muchimuchi/
The line above the logo translates to: "pioneering, plump-style vertical scrolling shooting game". At the bottom it says that the "Pork Story" will be revealed on the 13th.
Also, the following pic of the game's promotional flyer for the upcoming AOU show has been making the rounds on the net:
A friend of mine on IC is saying that the illustrator will be this dude called Kawahiko:
http://blog.livedoor.jp/kawahiko/
Still waiting for a screenshot...