Boy I hate sounding like a Nintendo fanboy so much these days...but for those of you who liked Puzzle Quest, and or ClubHouse Games, this new collection by Midway for Nintendo might interest you also.
There are several card games, but also two Yahtzee styled games, as well as Trivia, a Wheel of Fortune styled game, Word Search, a Columns styled game called Crystal Ball (I believe). It would take a while to list all the games here, there are quite a number of them!
While the graphics are average (let's be honest, there's nothing that will sit up and make you go "OOOO"), the ease of gameplay is second to none and is addictive as heck. It is exactly what it says it is: a collection of games making the most of the touch pad.
The interesting part again is the Wi-Fi aspect. There is a tournament mode, which I have not gotten into, for example. Also, I have not confirmed this but on the official site from Miday there is a place for the user to register for "updates." That makes me wonder if they are planning to periodically update the database of trivia, word search, etc. questions.
I know some of you DS folk on here are into puzzle type games - thought I'd let you know. Like I said, simple graphics, but incredibly addictive gameplay.