Here are three(two out of those some how missed the opportunity): Symbian OS: At one time this mobile OS had almost 99% market share, and at one time was leade

Here are three(two out of those some how missed the opportunity): Symbian OS: At one time this mobile OS had almost 99% market share, and at one time was leader in PDAs! Imagination Technologies: Leader in low-power graphics and audio hardware. ARM: Low-power microprocessor IP. If you think of the above three sectors, the UK was leader in three important pieces of the mobile stack, except for coms(I think that too could have been achieved if the guys from Cambridge were serious about building that piece of the stack). BTW, there are many other companies that work in biotech, chemtech and display-tech that are way ahead of the rest of the world. The curse of the UK is they never get to own the market.