Will the SIM cards fit in an iphone 4 which requires a micro-sim?

Can I use Blackberry data and BB IM on the global SIM?

What does it cost to call from one +44 global SIM to another +44 global SIM if in the same country?

Can I top up my French Orange payg SIM in the UK?

I haven't received my mobile number..

Do you sell French payg SIMs?

Can't find my US number on my global or USA SIM card

I have a problem with my global SIM, who should I contact?

What SIM should I purchase if I'm travelling to multiple destinations?

How does your SIM card avoid mobile roaming charges?