Nice if it integrated with an online supermarket, so the shopping was done and delivered for you. Also, help you stick with it, if it required discipline/commitment, e.g. to diet, economize, enforce variety, or learn to cook - perhaps that's a user-problem/need it could be presented in terms of.
A bit bizarre though; your iPhone tells you to make a sandwich.
Sorry just thinking aloud here: if it used an online database (perhaps social/collaborative), you could specify criteria (cheap/diet/interesting) - it would select, plan and shop for you, like an active recipe book. Of course, with social, you could select for most popular, rising, new etc. And have some very interesting culinary experiences. i.e. ask what people actually want from a recipe book (what need they are trying to get met through the book, not what a recipe book currently is), and see if you can serve that better in some way.
A bit bizarre though; your iPhone tells you to make a sandwich.
Sorry just thinking aloud here: if it used an online database (perhaps social/collaborative), you could specify criteria (cheap/diet/interesting) - it would select, plan and shop for you, like an active recipe book. Of course, with social, you could select for most popular, rising, new etc. And have some very interesting culinary experiences. i.e. ask what people actually want from a recipe book (what need they are trying to get met through the book, not what a recipe book currently is), and see if you can serve that better in some way.