For our European fans, rejoice! The Etrian Odyssey IV Demo is slated for release in the European eShop this Thursday!
The full release is scheduled for the 30th of this month. Even if you start out playing the demo, the information can be carried over to the full game upon purchase.
The demo was playable up to 30 times in the US version, so I would assume that it's the same for you guys as well. There were also no locks on any content, so it was almost like an early release.
Remember to visit our forums and feel free to post any questions you may have - or just general adventuring rants - for all those times you forget to pack an Ariadne Thread...