Microsoft has sent out invitations in Brazil for an event on January 29 and the tagline is a "release that will surprise you." While it initially seemed like Microsoft was going to pull back the curtain on Surface, Neowin has since learned that the event is not about the company's upcoming tablet.
With the Surface Pro out of the way, it re-opens what Microsoft has up its sleeve for this event. Seeing as Brazil currently does not have any Windows Phone 8 devices on sale at the moment, it's possible that the announcement could be related to those devices. If you have any guesses, let us know in the comments below. With January 29th being only a few weeks away, we won't have to wait very long to figure out what Microsoft is keeping secret.