Hey there, I'm referring to this page on the O2 website - http://shop.o2.co.uk/new-iphone/aboutsimswap.html (Existing customer with no Micro SIM) I'm just wondering what this actually means? And what it will do? I'm buying my iPhone 4 from the Apple store, SIM free. Then I want to use my current SIM in it but obviously it's not a Micro SIM.. Is this what the instructions will allow me to do? Turn my current SIM into a Micro SIM, kind of? Cheers.