My favorite magazine now has an iPhone app. Similar to their website, it shows featured recipes, tips, and videos to non-subscribers, while subscribers get access to the complete Cook’s database. Equipment reviews aren’t included currently; that seems like a reasonable compromise, given that you don’t usually need those in a hurry or on the go. I’m really glad to see this finally on the App Store!
All I know is when my sisters cook food from Cook’s Illustrated, I usually love it.