WhatsApp could be the next item on Facebook’s shopping list.

Following its acquisition of Instagram earlier this year, Facebook is said to be eyeing up another popular service. Cross-platform messenger WhatsApp could be the next item on the social network’s shopping list as the company looks to extend its mobile presence, according to sources close to the matter.

Too expensive and too uncontrolled?

Microsoft CEO Steve Ballmer was at the Churchill Club in Santa Clara this week to be interviewed by LinkedIn co-founder Reid Hoffman. One of the most interesting subjects he talked about was Microsoft’s Windows Phone platform, and how it compares to its two main rivals, Apple’s iOS, and Google’s Android.

As you might expect, he didn’t have many good things to say about his competitors. In fact, he called Android “wild” and “uncontrolled,” before saying the iPhone is too expensive and too controlled. Windows Phone, he feels, sits in a sweet spot between the two.

Finally!

There’s been plenty of debate over whether or not Microsoft will ever bring its Office productivity suite to Android and iOS devices. Many reports have claimed it will, while Microsoft itself has denied the rumors. But now product manager Petr Bobek has confirmed that it will happen next year.