I got it !
I found the device @ 399 € (Vodafone branded) which is quite good, considering that in Europe, unbranded, it is sold at 100 bucks more. If you want to know more about the Palm Treo Pro, you can find specs and out-of-the-box videos everywhere.
So I won’t cover those topics but expect a solid review from me shortly
Link to: Treo 800w Specifications – Treonauts