It’s unlikely that many Apple shareholders will have heard of Didi Chuxing, a Chinese ridesharing service, similar to Uber, in which the iPhone giant has invested $1bn. This may be complementary with Apple’s much-discussed but still-hidden automotive project, but it still betrays some confused thinking in the firm’s strategy for the Internet of Things. China, despite its recent slowdown, is seeing a rapid growth in the middle class, with rising disposable incomes, and that sector is one of the quickest adopters of new digital services, including ridesharing. Reports indicate that the Chinese roads are not coping with the swift increase in car ownership, and congestion is rampant. Now there is a battle for those Chinese roads, between Didi Chuxing and…