Please see my story on the issue at: http://journals.worldnomads.com/simon_monk/story/60949/France/Whats-it-like-to-travel-with-an-iPad
We are not confident about this answer but think that the iPad is contract only. This advice is from my colleague - I didn't know what an iPad was. about 10 years agoAnswered by Louise via Travellr.com
Three have pay-as-you-go data plans for the iPad
O2 also have micro SIM cards for the iPad but I'm not sure if they are available as prepaid or contract only. O2's website wouldn't let me see this information as I'm outside the UK.
There is also the option of using a MiFi wireless broadband device (available on prepaid from most UK mobile networks) and then connecting your iPad to it via Wi-Fi. about 10 years ago