It didn’t take long for the new iPhone 4S to break up its first marriage.

In a post on MacRumors.com, a man claimed he used the “Find My Friends” feature on the new phone to confirm suspicions that his wife was cheating on him. The man said he loaded the app on his wife’s new phone without her knowing it and then used it to catch her in a lie about her wheareabouts.

“I've had suspicions about her meeting this guy who live uptown. Lo and behold, Find my Friends has her right there,” he said in his post. “Thank you Apple, thank you App Store, thank you all. These beautiful treasure trove of screen shots going to play well when I meet her a$$ at the lawyer's office in a few weeks.”

The revelation brought a flood of online reaction, including a Gawker article.

“With many more to come, no doubt,” Avi Lewin posted on Twitter.

“Inevitable!” Rich Criado added.

But it’s not just cheating spouses that are worried by the new feature.

“I'm in sales. I'm dreading the day my boss walks in and announces that to ‘improve efficiency...blah, blah, blah’ they've decided to install Google latitude on all salespersons company issued iPhones and can now monitor us in real time,” a commenter on the article said. “Guess who just killed my Friday wing and beer meeting at 3 o'clock sharp....that's right. Google. Don't be evil my ass.”

This isn’t the first time that technology has been used to discover cheating spouses. Spouses have used tracking software to catch online flirtations, GPS devices (as well as those on cellphones) and old-fashioned email to catch cheaters.

Those who catch cheaters, by the way, won’t be able to make much hay of it in divorce court if they happen to live in a no-fault state.

Photo by Stuart Chalmers