All of the Mobile Phone providers have been sitting on their collective FAT backsides about this matter for years.
Along come the Government and say - Oh by the end of the year we wil be able to block IMIE numbers in order to reduce the crime figures wrt to muggings / mobile related crime.
Total cr*p - that facility has been around for a long time.
Yes, you are quite right in wondering about SIM cards too. They have a serial number, they can be blocked too.
But we have to wait until the Governement 'Spin Doctor' has had his/her say on the matter.
Problem is when you and I get a new SIM card do you record the serial number of the SIM card ? I personally do.
No doubt there will be leaflets and TV campaigns about it in about 2 years when it has been passed .
Until people realise that they have to use mobiles responsibly and the Governement are in debt to the mobile companies for providing them with billions for the 3G explosion that never happened, we will all have to take common sense.