T-mobile has now added themselves to the list of operators who will be stocking the iPhone 4.

They have now added themselves to a list that includes O2, Vodafone and Orange. This now means that of the major UK operators the only one won’t be stocking the iPhone 4 is 3..

The iPhone 4 is due to launch on the 24th June so we’d expect the tariffs to be announced very soon.

The iPhone 4 brings a number of improvements over the iPhone 3GS including a higher-resolution screen, thinner casing, improved battery life, improved camera and video calling support.

You can register for updates on the iPhone 4 from T-mobile by clicking here.