Just a couple of days ago, eXpansys was told to stop selling non-European iPAQs in the UK. It hasn’t stopped them from offering the UK version of the iPAQ hw6510 to their US customers though. For only $699.95 USD (yes, I am being sarcastic!), you can be among the first in North America to have a hw6500 which HP has not officially released here yet. One note of caution: HP USA will probably not support this unreleased model and getting warranty repairs could prove challenging as well.
It looks like they are selling quickly. Brighthand’s article reports that they had 17 in stock. When I looked this morning, only 1-5 were still available.