Wow, finally! I absolutely love Shiren the Wanderer DS.
It was my first rogue-like dungeon crawler. Sometimes I couldn't put it down for hours.
And when it ended (well, I haven't completed the last non-story quest yet), I wanted more, so I started with pokemon mystery dungeon even though I hated pokemon... Turned out it was pretty good, although pretty watered down and easier in comparison to Shiren The Wanderer (it's from the same developer).
So I hope this gets a european/PAL release - I will definitely buy it when it comes out.