From Ilium Software:
Tipster is a nifty program that will let you quickly calculate tips and taxes on your Palm device. With a simple tap, you can instantly view the tip and tax amounts required for a given purchase. This figure can be viewed separately, or incorporated into the final sum you owe. The program also offers an easy-to-use interface, and will let you to configure the amounts and percentages used in calculations.
What's new in this version: