Have Math Formulas on Hand (on Your iPhone or iPad) for Quick Reference [Wired:GeekDad] - $2 formula chart apps
Play With Polynomials With Algebra Touch [Wired:GeekDad]
AppMakr Helps You Create Your Own iPhone App for Free, No Coding Necessary [Lifehacker] - Project idea: have your kids or students create an app that helps others learn or practice a concept from class.
KhanApp Offers Free Education To Go [Lifehacker] - The great frontier of education, in the palm of your hand.
EpicWin Turns Your To-Do List into a Role-Playing Game, Available Now [Lifehacker] - Couldn't we easily have our students/kids put their academic to-do lists into this game, giving them another incentive to get important stuff done?
Lifehacker and Wired:GeekDad are not surprisingly full of app-related advice. Mashable is also a great resource. Suggest your favorite place to find out about new education related apps in the comments.