An anonymous reader writes: Korean users are among the most bandwidth-hungry smartphone users. During the MPTCP WG meeting at IETF'93, SungHoon Seo announced that KT had deployed since mid June a commercial service that allows smartphone users to reach 1 Gbps. This is not yet 5G, but the first large scale commercial deployment of Multipath TCP by a mobile operator to combine fast LTE and fast WiFi to reach up to 1 Gbps. This service is offered on the Samsung Galaxy S6 whose Linux kernel includes the open-source Multipath TCP implementation and SOCKSv5 proxies managed by the network operator. Several thousands of users are already actively using this optional service.