On Friday, we told you that a little app called Yo was beating out Facebook’s Slingshot in the App Store with one simple function: messaging people with the word “Yo.” Now the app has topped 1 million users, despite being hacked over the weekend.

On Friday, we told you that a little app called Yo was beating out Facebook’s Slingshot in the App Store with one simple function: messaging people with the word “Yo.” Now the app has topped 1 million users, despite being hacked over the weekend. Whether they’ll be able to keep that user base remains to be seen, as one part of the Yo trend is how quickly people say they delete it after downloading. (Mashable)