Re:Sounds virtually useless ... (Score 1)

It is virtually useless, the most travelled stations are in central London and have a frequent service, when the service is running as it should which is 95%+ of the time. However these stations are normally sub surface or deep lines and have no mobile phone coverage at all on platforms. I used Warren St station today (I work accross the road from it) and I only know about this service through Slashdot! I spend less than 2 minutes normally on the platforms and less than 5 minutes in the station, most of that is travelling to the platform of course. Stations in central London are managed and CCTV coverage is ubiquitous (I actually work on telecoms installation projects for rail stations) so they are generally very safe and you see many people using Ipads, Kindles and smart phones on stations and trains.