UK 3G mobile phone operator '3' (Three) has launched a new data (Internet) access package that costs an additional £5 and offers 'unlimited access' to the Internet from compatible handsets (e.g. its X-Series range).

Typically "unlimited" actually means a 'Fair Usage Policy' (FUP), which comes complete with a 1GB download cap. The add-on is only available if you're an existing 'Three' subscriber. http://www.three.co.uk.