> but it's still interesting that people choose it over their phone For one thing, there's no mobile signal in the tube, and the wifi there is, isn't cheap and

> but it's still interesting that people choose it over their phone For one thing, there's no mobile signal in the tube, and the wifi there is, isn't cheap and only covers stations. I have access to the wifi through my mobile plan, and I still prefer reading offline content on my tablet or Kindle.