As an interesting aside, I gave a friend a Toggle SIM card with £10 credit on it for use when calling Poland from the UK - saved him a lot, and he used up £3 worth of credit.
He didn't register the card as I suggested, so when he visited Poland, it didn't access the Polish networks.
This is one interesting limitation of Toggle - useful to know.
(And yes, I have registered the SIM card for him now)...
+Steve
[size=2]Steve Gold
PO Box 1014, Sheffield S10 5YG, UK
Home mobie: Telefonica O2
Other UK mobiles: 3, Vodafone, Virgin
Foreign SIMs: Toggle (multi); Germany (Fonic); Poland (Orange PL);
Skype: stevewgold