[quote name='SDC']So I'd also take this opportunity to ask if there are any other released-in-the-UK-but-not-in-the-US DS games I should keep in mind?[/QUOTE]
I think there's a game called Anno 1701 AD that only came out in the UK. I want to say it got good scores, and is a simulation game along the lines of Civilization.
I believe that a version of Myst was also released, but I heard it was a terrible port.
For the record, Tingle had next to no chance of coming to America. Americans showed a rather large dislike for the character and his ...um.... colorful overtones.
Which is really, really stupid. I have the game but haven't tried it out just yet - there's a lot I'm working through at the moment.