As much of the marketing world focuses on new ways to woo and dazzle the highly coveted Millennial generation, some companies are setting their sights on an overlooked (at least by advertisers) group: Baby Boomers. T-Mobile, for instance, recently unveiled a phone plan aimed at people 55 and older. (Boomers are generally defined as being, at this point, between 53 and 71.) In an occasionally profane 5½-minute video posted on Twitter, T-Mobile CEO John Legere said, “I’m here today to fix something that drives me completely crazy,” before criticizing his wireless competitors for deeming Boomers as “too old,” “stuck in the past” and not interested in technology or the Internet.