Apple has warned investors that its future suite of new products may never be as profitable as the iPhone.The company issued the warning in a recent securities filing as part of a list of “risk factors” that could weigh down the business.Apple, which was recently supplanted by AI chip maker Nvidia as the world’s most valuable company, last week reported 6% increase in revenue for the most recent quarter though it said that it expects weaker growth during the current quarter. 3 Apple has warned investors t ...