I did some reading though in regards to the lawsuit that Apple filed against George Hotz (geohot) and found that although the judge ruled in favour of geohot, this ruling was passed under US law and it does not apply to the laws in the UK.
Apple are still protected under the copyright infringement act of 1988, although it has been also mentioned that a judge would probably be in favour of the individual that had jailbroken their phone, even if such a precedent has not been set yet within the UK