Owners of the iPhone 3G and iPhone 3GS handsets are able to get around the charges that O2 Mobile charge to turn their phone into a mobile broadband modem dongle.
The website benm.at has available some software that will allows access to the tethering service meaning that the iPhone can be used as a mobile broadband modem with the 3Gb data transfer limit for free.
O2 say that this is against their Terms of Service and will disconnect any user they find doing this without paying for the Bolt On.
O2 are the only provider in the UK that can sell the iPhone and charge £14.68 per month to users to be able to turn their phone into a wireless mobile broadband modem that has 3Gb data transfer per month.
Currently iPhone users who download the iPhone 3.0 update are able to get around O2 mobile broadband charges to use their Internet connection for free.