Just copied it onto my Memory Stick and am now in the Menu.
Quick Review and Short Thoughts on the Game/Demo following later when I'm back home.
What I can say for now is that the Intro is the latest trailer we got, which shows quite a few late-game scenes and is effing long. Also, before you get to play, you'll get to watch even more cutscenes. Mehness.
In case you wanna give it a try as well, here you go.
Extract and copy onto your PSP. Also, it's Japanese, so get used to the switched X and O buttons and that you're on your own.