“Either way, O2 had been planning to advertise its iPhone data plan as unlimited, yet still enforce a monthly data cap at 200MB. While we can understand that the term ‘unlimited’ sounds a bit sexier than ‘you’re getting cut off at 200MB’ when it comes to marketing, outright lying to customers like this is just plain wrong. The company gets this now and has decided to eliminate the cap to truly give unlimited data to iPhone customers.”
A 200MB cap would also have been suicidal. T-Mobile offers a cheap deal which gives you 1GB, and would have happily advertised against the iPhone on this point.