New Super Mario Bros is a sure bet. If you both have DS's Mario Kart (along with other games) can link up wirelessly and you two can race together. Its quite fun. Hotel Dusk is alright. Im more of a Zelda guy, but your wife may not be (Even though PH is amazing). If shes into puzzles, there is Picross and NYTimes Xwords
Brian ZuckerGeneral PR Manager, VGChartzbzucker@vgchartz.com