Is anyone working on porting a financial calculator to the Pre?

Here is the script for a basic Mortgage Calculator:

Mortgage Calculator Script - Free Mortgage Calculator Widget

and another:

Mortgage & Loan Calculator for web design

and another:

http://www.askdavetaylor.com/interes...alculator.html

This is a more powerful calculator (with formulas) because is can solve for any of the variables not just Payment:

* Finance Calculator

What would it take to port just a mortgage/loan caculator to an ipk in homebrew?

- Craig