Good Calculator anywhere?

I'm looking for a better calculator. I would especially like one that had a business section with automatic calculations for profit margin, etc. Going back years ago to a Palm Treo 650 I had one. I haven't seen a single replacement calculator for the Storm.

Any suggestions.

Thanks

does g-whiz work on the storm. Its an advanced calc, not sure if it has all you need.

Aaaaaand this has no business in the beta OS thread. Mods - move to 3rd part apps, please.