Many thanks for the info! Where did you get the list of device codes? I don't see it anywhere else on the net.
Aside from the news with Romania, I'm seeing people on a German forum report that they're receiving the Froyo update. See the recent threads:
Samsung Galaxy 5 (I5500) Forum auf Android-Hilfe.de
I've tried spoofing using the DBT product code that you provided, but it doesn't offer Froyo. However, I think that they are other German versions of this phone, of which the codes you haven't provided. You can see the potential codes from the Kies 2.0 Register Patcher that you link to.