Apple Could Launch Its Most Important Product Since the iPhone This Summer, According to a Pair of Wall Street Analysts

Apple (NASDAQ: AAPL) could use a new blockbuster product, and it could come as soon as this summer. The iPhone maker saw sales rise just 2% last quarter after a year in which revenue fell 2.8%. China remains a big question mark for Apple following a government ban of iPhones and a report indicating a massive decline in sales in the country to start the year. Meanwhile, the varying sources of its high-margin services revenue remain the focus of regulators around the world. But at least two Wall Street analysts think Apple will release the next product to set off…