Forbes has just unveiled its annual list of the world's most valuable companies, and perched at the summit of this particular round-up is Apple. The iPhone maker has had an incredible year, shifting record numbers of the just-released iPhone 6 and 6 Plus in the first couple of months on sale, and with an estimated valuation of almost $125 billion, Forbes believes Apple's brand is worth double that of Microsoft and almost 2.5 times that of search giant Google.
