Besides the Nokia Lumia 810, another Windows Phone 8 model has disappeared from T-Mobile's online store. The HTC Windows Phone 8X is apparently no longer available from the T-Mobile website although those who want the phone might be able to find it in a physical bricks and mortar T-Mobile store.
Some new Windows Phone 8 models are heading to the carrier such as the Nokia Lumia 521 expected to be offered on T-Mobile next month, and the Nokia Catwalk which appears headed for a May 15th launch. All we know about this model is that it should have a 4.5 inch OLED screen and to take great pictures in low-light, the device has both a Xenon flash and an LCD one. The aluminum casing measures 10.5mm thick. What might hurt this device is the launch date which comes after the release of both the HTC One and the Samsung Galaxy S4.