Courtesy of the folks at Airport News Japan:
Users download movies, TV shows, music, magazines, games or other content to their smartphones or other devices through the airport terminal's dedicated Wi-Fi network, which they can enjoy without limitation while in the airport or on their departing flight.
What makes this more interesting than the usual in-flight entertainment (IFE) news is the fact that this is being done by Peach, a low-cost carrier in the same vein as Southwest Airlines or Ryanair. As noted in the post, low-cost carriers don't typically offer IFE in their aircraft. This is a very smart, relatively low tech way to offer IFE to passengers without incurring the costs of a traditional installed IFE system or Internet connectivity systems/services like Gogo.