the author of this app says:
LACC (Lacc's Another Currency Converter) is a freeware program for the Palm(tm) handheld.
With it, you can compare monetary amounts of up five different countries simultaneously, to see how the much the same value is worth in each.
The program allows you to add, remove or edit the details of a number countries, saving the name, currency and exchange rate.
The exchange rate you enter can be based against any currency of your choice, so the conversions shown will then be based on that currency.
By displaying the base rate country (with an exchange rate of one) on the main form, it is possible to determine the equivalent amount of your favorite denomination in up to four other countries.