So that's around 7 million phones per year. Assuming around £700/phone and 30% profit (very rough made up numbers), that should be £1.5B/year profit. If the judgement is for £3B to £5B as the article states, I can see why they might decide to exit the UK market. But that only makes sense if they don't then lose the patent cases in other juristictions, and end up having to pay similar royalties anyway.