Here’s a fun little hiccup in OS X Leopard:
Those of you of a more British persuasion might notice the glaring absence of British Pounds Sterling from the list. The currency popup says “Currency exchange provided by Yahoo! Finance” so it’s entirely possible that Yahoo mislaid our currency rather than Apple, but it’s still somewhat annoying. Almost as annoying as the name of the currency changing frequently in Tiger: Pounds Sterling, pounds sterling, British Pounds, etc.
Meanwhile, xe.com has a very good currency converter that includes United Kingdom Pounds.
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Well, unless their API is different to their website, it isn’t Yahoo!’s fault. http://finance.yahoo.com/currency/convert?amt=1&from=USD&to=GBP&submit=Convert