The Nokia Lumia 925 for T-Mobile will be announced tomorrow at a T-Mobile press event. it should be available shortly after.
New details have emerged regarding this device on the T-Mobile network. It will come with support for WiFi HD Calling. In case you don't know, WiFi Calling allows you to use WiFi to make clear calls. it is also available on T-Mobile's Lumia 521, that's a good thing.
But on the downside, the Lumia 925 will come with 16GB internal storage. Just leave it to T-Mobile to find a way of making a Nokia device lower spec'ed than its peers, as you know the Lumia 920 and 928 come with 32GB internal storage, but this shouldn't be an issue as there are tons of free cloud storage services that offer an average of 2.5GB free, SkyDrive offers 7GB free.
The device is the best looking Lumia 9xx device in its class,
More details tomorrow.