The nice Nancy Drew folks have just released the January Newsletter, all about the upcoming Nancy Drew game for the Apple handheld systems.
This game is Nancy Drew: Secret at Shadow Ranch, one of the most popular Nancy Drew books (and games). It appears to be a choose-your-own-adventure style, with minigames and fun things like that. I'm pretty sure it's based off of this mathematical formula:
Choose-your-own-adventure + adventure game = Great idea
The newsletter also links to a special mystery video, Nancy Drew: The Case of the Missing iPad. I found it amusing.
Minor edit: The mystery video is now on my channel as well.