iBank for iPhone
UPDATE: IGG Software has released iBank Mobile for the iPhone. It can be purchased through iTunes .
All data stored securely on your MobileMe iDisk for syncing with iBank from your computer.
iPhone-like user interface using iUI .
Add, edit, and delete transactions on the go.
View balances.
Automatically memorizes new transactions.
Uses the memorized transactions from your Mac to speed data entry on the go.