In the meanwhile the G3 is now available in many European stores! Here is the list (Click on shop name and you will see the G3 price and availability!):
Austria: Amazon.at, eBay.at
Belgium: Pixmania.be, eBay.be
Finland: Pixmania.fi, eBay
France: Amazon.fr, Pixmania.fr, eBay.fr
Germany: Amazon.de, Pixmania.de, eBay.de
Ireland: Amazon.uk, eBay.ie
Italy: Pixmania.it, eBay.it
Netherlands: Pixmania.nl, eBay.nl
Norway: Pixmania.no, eBay
Poland: Redcoon.pl, eBay
Spain: Redcoon.es, eBay.es
Sweden: Pixmania.se, eBay
Switzerland: Amazon.de, Pixmania.ch, eBay.ch
United Kingdom: Amazon.uk, Pixmania.uk, eBay.uk
P.S.: The GF3 is now available in Asia at Amazon.jp, and Digitalrev.