T-Mobile running out of stock after $49.99 sale for the Google Nexus 4
draugaz showed 1 million Google Nexus 4 models had been sold since launch and that production of the phone has jumped up from 70,000 units in November to over 550,000 last month. Those estimates were obtained by plugging the IMEI number, unique for each individual unit of a phone, into a website which would return a code that could determine when and where that unit was produced.
T-Mobile just refilled its shelves with the device at the end of last month and 10 days later, it is almost all gone. The phone had been seeing heavy demand anyway, but offering it for $49.99 surely took demand over the top at T-Mobile.
source: T-Mobile via Slashgear