It seems this remote is available in US/Canada only, at least that was the case up until 2 weeks ago when I bought mine (Sony Italy didn't even know about its existence).

If you want it bad, buy it from the US; I bought it on an ebay.com US shop; shipping costs doubled its price but it was worth it.

You can try froogle.google.com as search engine to find out many other online shops which carry it (only about 10% of the online shops listed will ship to Europe).