T-Mobile has a killer deal on cell service, but only if you’re old

T-Mobile today launched its weirdest promotion to date: a massive discount on two lines of unlimited service, but only if you're 55 or over. It's not the first time that T-Mobile thought way outside any kind of conventional box for its marketing, but this is the first time I can remember a wireless carrier targeting the niche of heavy data users over the age of 55.The deal is genuinely fantastic: two lines of T-Mobile One, which includes unlimited talk, text, and data, for $60. To qualify, you h