The US arm of Korean start-up Titan Platform, a content platform provider and hardware maker, has revealed that a major US telco is investigating the potential launch of a home gateway with a SIM card – based on the belief that millennials are axing their broadband subscriptions. They would reportedly prefer to have an extra $5 a month fee attached to an unlimited mobile data plan by dropping a SIM into a home gateway, rather than pay the full amount for a broadband package. According to the CEO of Titan Platform US, Adrian Sexton, his company is currently in discussions with one of the big four US telcos to be the hardware provider for a project of this type. AT&T…