I just finished Professor Layton and the Curious Village and before that Touch Detective. I'm currently working on finishing Apollo Justice and Touch Detective 2 1/2.
Don't take this the wrong way, but you chicks and your adventure games...! My wife is the exact same way -- cleared out all three Phoenix Wright games as soon as I gave them to her, knocked out Professor Layton in like two days, and now she's on to Apollo Justice.
Me, I need a good action game. Not necessarily shooting things, but it certainly helps.
Last game finished was Ouendan 2, but still playing it. I think I enjoy it more than EBA. The first Ouendan is so unpolished in comparison to the second, though it's still fun. Great games, though. On the other hand, I appreciate the quality of the DS adventure games, but I can't quite get into them.