The Google Nexus 4 has become a very popular Android smartphone, the handset has been hard to get hold of on Google Play due to more demand than the supply for the device.
Google sells a SIM free version of the Nexus 4 on Google Play, and the mobile carriers have also been selling the device, although it seems more expensive when you take into account the cost of the mobile contract, T-Mobile previously offered the Nexus 4 for $200 with a new 2 year contract
T-Mobile are going to be offering the Nexus 4 for just $49.99 when you sign up to a new two year contract with the carrier, this is after a mail in rebate from T-Mobile.
The Google Nexus 4 will be available for $49.99 for a limited period on T-Mobile, and the offer will be available through T-Mobile’s website only from the 18th of February.
Source Android Community