evLeaks has just tweeted another unannounced handset, this time the humble Nokia Lumia 521 for MetroPCS.
Of course it is no real surprise the handset is heading there – T-Mobile USA and MetroPCS recently merged and the CDMA network is transitioning to GSM.
This means in all likelihood the handset will be identical to the current Lumia 521, but with slightly different software.
The Nokia Lumia 521 has been an unexpected success story for Nokia on T-Mobile, with the handset ranking ahead of the Samsung Galaxy S3 and iPhone 4S on T-Mobile’s best seller list. The Nokia Lumia 520 family is currently the most popular Windows Phone, according to AdDuplex’s usage data.