Curious what the current exchange rate is for the Croatian Kuna? How about the Turkish Lira?
Well there's a Windows Phone 7 application available for $.99 at the Marketplace that will help you with all your currency conversions. Currencies (link opens your Zune browser) is a currency converter that makes use of the Windows Phone 7 hub layout with pages for your favorites currencies, exchange rates, a currency converter and settings.
You can set any of the currencies as your home currencies and the exchange rates are based off that currency. Exchange rates are updated daily to keep things current. Currency settings on the converter can be changed by tapping each square to pull up a listing of currencies you can convert to and from.
Currencies is a straightforward, simple to use, stable application for your Windows Phone. There is a trial version available if you want to try before you buy. If you have a need for currency conversion, Currencies is worth a look.
Hit the jump to see a short video demo for Currencies.