The apple may be juiced. Despite Q4’s record $18.4 billion profit, the company’s revenue and iPhone sales were slightly lower than analysts had expected. Stagnant phone sales indicate that the company’s growth may be hitting a wall, due to economic challenges in China or simply because of market saturation. Either way, Apple predicts the second quarter will bring its first sales decline in 13 years. No one is predicting doom for the corporate giant, but with sales of its other products already stalled, leadership may start dialing the help line.