The British Library in St Pancras has just gone wireless. With wireless service through all its public spaces, including its 11 reading rooms, 225-seat auditorium, restaurant and outdoor Piazza area, it’s now the biggest wireless hotspot area in London. According to research commissioned by the Library people, 86% of visitors to the library own a laptop; the "average dwell time" in the library was 6 hours (6 hours! We thought we liked books, but that’s impressive); and 16% of the visitors only came to the library to sit down, have a coffee and use the building as a business centre (ignoramuses).
The service can be accessed using your own service provider Wi-Fi service (currently BT and The Cloud accounts), or you can buy pay-as-you-go cards for £4.50 and hour (pretty reasonably compared to the £6 you have to pay in most coffee shops). The service is being provided by The Cloud.