SplashShopper is a shopping list application that's been around for a long time. Now the iPad version is finally available. Here is more info on this new iPad app:
Manage your lists of groceries, gifts, to do's, wines, music, movies, and more. Track prices and locations. Easily manage, backup, and sync lists to your PC or Mac.
-Create an unlimited number of shopping lists each with different categories, custom fields and icons -Quickly enter items using QuickLists and and a fast-entry grocery database -Assign items to multiple stores & track per-store prices -Customize the column display and sort order for each list -Email needed item lists to other SplashShopper users or as plain email -Sync with the SplashShopper desktop over Wi-Fi (sold separately for $9.95)