No you're wrong. I asked in Glasgow Apple store. Ask dave one of the geniuses. Confirmed that instore bought iPhones are european carrier locked.
LMAO at two geniuses here! I suggest Dave find a new job since he clearly has no clue and you need to stop spreading false rumours. If you actually thought about it, you would see how silly it would be to have 2 types of locks - one for Worldwide and one for Europe.
The phones are sold as SIM Unlocked - both online AND retail. Nowhere does it state that purchasing a phone either online or retail provides a different unlock compared to buying the other way. It would also be false advertising to claim the phones are fully unlocked when infact they aren't.
In London, 2 months into the launch - you still cannot walk into an Apple store and buy a phone without joining a queue 8 hours before the store opens. Do you know why? Well for 2 reasons. Firstly most people buying it, buy it with the intention to sell abroad. To countries that do not have iPhone 4s and with people who will be happy to pay.
Secondly, people who visit the UK want to pick one up for themselves and go to their own countries and use them. Are you telling me that everyone who buys a retail phone is living in Europe? If they aren't (and according to you they only have a European unlocked phone in the store) - shouldn't Apples forums (and others such as MacRumors) be flooded with people talking about how they bought an unlocked phone which they thought was fully unlocked but found out that in their country the phone doesn't work? That they didn't know standing at the Regent Street store for hours only to then fly for 11 hours back to their home country that the store phones were only "European unlocked"? Doesn't sound silly to you?
I don't know about you, but I dont see any threads about people thinking they bought an iPhone 4 unlocked and found out it wasn't. the UK sold phones on launch day and was one of the only countries to have a fully SIM unlocked phone on day one and you can bet many of the first sold phones went abroad to eager buyers.
I suggest you read this. The last time I checked, "International" and "Worldwide" didn't only mean Europe:
http://store.apple.com/uk/browse/home/shop_iphone/family/iphone#faqs