Developed on the assumption that there's no such thing as too much choice, Coca-Cola Freestyle is a new self-serve soda fountain that can dispense up to 100 different drink flavours. The machine is being tested this summer at fastfood restaurants in California and Atlanta, with the intention of rolling out units across the US early next year. Flavoured teas, waters, juices and soft drinks will all be available from Coca-Cola Freestyle, letting customers select drinks based on brand, calorie content or caffeine levels, all through the system's touchscreen interface. Combinations will be pre-set, meaning Raspberry Coke and Peach Fanta are…