Earlier this week, Google (NASDAQ:GOOGL) released an updated version of its search app, Google Now, for Apple's (NASDAQ:AAPL) iOS. It includes a voice-activated assistant similar to Siri. The development may be the next case of Google undermining native software with an app, as was the case with Maps, or it may be a weak competitor that never gains traction. Ultimately, the type of user interface promises to have many applications, so investors should be anxious to see how the story unfolds.

In the video below, Fool.com contributor Doug Ehrman discusses Google Now, some of the ramifications of its success, and what to watch for in coming months.

Fool contributor Doug Ehrman has no position in any stocks mentioned. The Motley Fool recommends Apple, General Motors, and Google. The Motley Fool owns shares of Apple and Google. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.