We have been long-term advocates of T-Mobile’s disruptive aptitudes in the mobile scene, all the while holding its video ambitions in similar stead, yet patience is fast running out among millions of US consumers. The distribution deal signed between T-Mobile and Viacom this week is definitely a significant one – but quite simply the uncarrier will have to do better than signing a distribution for old hat TV channels if it plans to unsettle the established players in the mobile-first video market. The T-Mobile fascination is waning – could missing the boat and flopping into the sea of OTT video corpses become a reality or will T-Mobile really pull something successful out of the bag? Even T-Mobile’s disappointing change of…