It's only 2 months until Dissidia: Final Fantasy is released in Europe, so put September 4th in your calendar. Also, only for us glorious Europeans (at least, those who own the PSP), a limited edition will be available with all sorts of extras, which include a unique packaging, a book of the game's artwork, the strategy guide, an OST, and more. Standard copy is £25, and supposedly the limited edition is the same price, but we've yet to see an official difference in pre-order anywhere.
In addition, for anyone who still hasn't a clue what Dissidia is or is about (and where have you been?), the official site is now open.
Dissidia: Final FantasySource:
RPGamer