We've just started receiving tips that Apple is quietly cutting the price of existing iPods ahead of its planned event later today. Thus far, we've seen the following price cuts. All prices given are in USD:
iPod nano is now $129 for 8GB and $149 for 16GB.
iPod classic is now $229.
iPod touch is now $189 for 8GB, $249 for 16GB and $279 for 32GB.
There is no change to the price of the iPod shuffle.
These changes haven't completely gone through the site yet. As seen in the screen capture, some parts of the site still list the iPods at their old price.