Facebook launches Check-In to Events

This is freakin´ brilliant. Me triple like this one.
Facebook launches "Check into events"

What does this mean to brands? Well first of all it gives an incentive to use FB Places more.
The viral potential is huge. Take a sports event for example. Football game, 100.000 people at the stadium, checking into the game, finding out who´s nearby, finding out the merch store offers a discount on the Messi sweater, only Today.
And then we have the numbers... from 200 to 250 million:
"Mobile continues to be an important priority for the company. Facebook revealed last week that 250 million people are actively using Facebook via mobile devices on a monthly basis"
The Power of Check-InsTweet