Here are the most expensive places to buy the 2 gigabyte nano:

  • Brazil – $327.71
  • India – $221.27
  • Sweden – $213.03

The best places to buy that nano:

  • US – $149.99
  • Hong Kong – $147.63
  • Canada – $144.20

Some economic analysis is here (a bit boring unless economics makes you feel tingly inside).

The gist:

Just over 20 years ago, The Economist magazine launched an index based on a McDonalds hamburger ? the Big Mac index ? a practical way of assessing whether a particular currency was under or over-valued against other currencies.

The CommSec iPod index is a similarly light-hearted approach to assess currency movements.The index suggests that the US dollar has potential to appreciate against a range of major currencies, with the Aussie dollar around 15 per cent over-valued against the greenback.