Update: We are aware of a number of complaints about this company and would for the moment advise people to seek an alternative method. We tried to test this out ourselves but our order was never received. This post is for archive purposes only and is not an endorsement of Any-Network.com

Any-Network.com have released a sim adapter that is claimed to fully unlock the 3G iPhone for use on any network including the use of 3G Data

UNLOCK ANY PHONE including the latest iPhone 3g

Works out of the box with any phone.

100% tested with Apple iPhone 3G.

Allows your phone to use 3g data as normal.

No dropped signal or having to swap sim from phone to phone.

Works with all networks including 3.

Easy to use & hassle free.

No warranty void.

No breach of contract with Service Provider.

Our universal card works by placing it in between your normal SIM and your phone. No software, no cables , no future costs. Simply place between phone and sim card.

Their solution claims to unlock your iPhone for use on any network including 3g data. You simply place the Any-Network sim onto the back of your existing simcard, insert into your iPhone and away you go, your iPhone is unlocked. New software upgrades can be obtained from iTunes as normal without the need to unlock again.

The Any Network Sim currently costs £22 and can be delivered worldwide. We haven’t tried this ourselves so if anyone has any experience of this we would love to know.