Same as Taipei Metro, you can obtain the latest information about London Tube from TravelBot. TravelBot includes every tube line on London Tube system.
The London Tube is grouped in such:
Group 1: Bakerloo Line, Central Line, Circle Line
Group 2: District Line, Hammersmith and City Line, Jubille Line
Group 3: Metropolitan Line, Northern Line, Piccadilly Line
Group 4: Victoria Line, Waterloo and City Line
Tube Line Carousel
Using the example of Group_3, The Tube Lines in Group 3 will be presented in Carousel. Similar to Taipei Metro, it contains Arrival Time and London Tube Map.
London Tube Schedule
The London Tube schedule will be sent as a text, formatted as such: <time to arrive next station> At: <current location> From: <previous location>