I suspect business customers might have more of a stick to beat O2 over the head with, rather than average people with a cell phone contract. e.g. Transport fo

I suspect business customers might have more of a stick to beat O2 over the head with, rather than average people with a cell phone contract. e.g. Transport for London's dot matrix displays could not show bus times for the 14 or so hours the network was down, apparently iPads issued to NHS staff to manage patient reports used O2 sim cards so that couldn't work either. Probably a whole range of small to medium enterprises affected too.