Apple (NASDAQ: AAPL) has become one of the best dividend stocks in all of tech. Fed by its popular device franchises, the Mac maker hauls in a quarterly cash hoard large enough to make Scrooge McDuck blush, and the company has, in turn, lavished capital on its shareholders through dividends and buybacks.Apple reports its second-quarter earnings on Tuesday, May 2, and the company has traditionally raised its dividend during this quarter.