Apple (AAPL 4.24%) released its quarterly earnings yesterday after market close, and investors are celebrating today. Revenue came in at $35.3 billion with earnings per share of $7.47. The King of Cupertino also spent $16 billion on share buybacks. That's an encouraging sign for Apple investors, but Motley Fool analyst Matt Koppenheffer argues the real catalyst will come when Apple debuts the next big iDevice.