I didn't know about it, I investigated a little and it seems that for now it's only available in Africa, or I'm mistaken?
To be the next big thing, it depends on what they can do it, but everything that comes from Google usually triumphs!
They have "control" over the interner, so they can do a pretty big product with this!
And for Africa, it could be a great opportunity! I hope it all goes well!
PS: Here's a little more info about it: http://www.busiweek.com/11/science-a-technology/ic...