T-Mobile has unveiled a new promotion for new and existing subscribers. Starting October 17th, customers will be able to connect a smartwatch, laptop, or tablet to the Go5G Next or Go5G Business Next plans. All it takes is just $5 per month per device.  PhoneArena pointed out that wearable devices cost $7.50 per month on Verizon and $10.99 per month on AT&T. Meanwhile, laptops and tablets cost … [read full article]