The pricing will be global - country independend - and should be as follows:
$375.33 - LCD Wi-Fi version
$425.33 - LCD Wi-Fi and 3G version at (for limited period?)
$499.45 - Transflective version (Pixel Qi) Wi-Fi only
$549.99 - Transflective version (Pixel Qi) Wi-Fi and 3G variants (2 variants in 3G, 900 series and 850 series which takes the variant numbers to 6).
More details on their blog:
http://notionink.wordpress.com/2010/12/09/fiat-lux/