And by "titles", you mean MonHun. Looking at the continued strong sales of 3G it's kind of hard to not draw a direct correlation.
Yes. Monster Hunter and Dragon's Quest.
It's a difficult mountain to climb when you're software lineup is going up against Mario 3D, MarioKart, and Tri G. Kudos to Nintendo for knocking down the price and getting the right software positioned for the holidays and Vita launch.