5 iPhone apps for moms

1Shop Savvy
Bargain shoppers use ShopSavvy to compare prices of items in different stores.
2. Coupon Sherpa Mobile
Coupon Sherpa Mobile delivers to your phone internet and exclusive coupons.
3. Ace Budget
Ace Budget serves as an e-checkbook register. Enter your purchases on your phone and you don’t have to save the receipts any more. It shows your spending as charts and compares past trends.
4. CollegeSave
CollegeSave estimates your kids education costs and tells you what you should be saving each month.
5. Pageonce
Pageonce tracks accounts and provides a Payments due feature telling you when it's time for you to pay. If you lose your phone, you can log online and block your accounts.

This is a nice list. but where should I go to learn more about designing apps?