I am in love with this Android App.
It's called Fooducate. It lets you scan virtually any food item and then it comes back with a report on how good it is for you, and the information is incredibly detailed. And it's free (there's also a web-based version). The database is huge, the only product that hasn't come up is the salsa I got from Giant Eagle.
The quinoa I ate for lunch came back with a A- grade.
Can't say the same for the snack I just had...
And my protein bars aren't nearly as great as I thought :(
I can't wait for the next version of the app, which will tell me what's Gluten Free!