iPhone Electronic Formula Calculator

My latest adventure has been in the iPhone/iTouch application development world. The first application to hit the iTunes Store is Formula Sensei, a formula database and calculator. Formula Sensei will encompass a suite of formula calculators, the first of which is the Electronic Formula Calculator. This app has been developed and uploaded for review/approval to the iTunes store. Future editions of Formula Sensei will include financial, real estate, physics, etc. A web site has been set up to provide more information about the product:
Update: the E-Formulas app has now been approved for sale! See it at the iTunes Store: E-Formulas.