View shared PowerPoint presentation with Lync 2013 update for Windows Phone.

Microsoft published an update for Lync 2013 app for Windows Phone. The new features lets you view shared PowerPoint presentation during a Lync meeting and control Lync with your voice.

Lync is an enterprise software that replaces Office Communicator and Windows Messenger. There's a client version for Windows 7, Windows Phone, Android and iOS. The multi-platform app is free.

What’s new in version 5.3:
•         View shared PowerPoint presentation during a Lync Meeting
•         Control Lync with your voice - Join a meeting and play a voice mail

Source: Windows Phone Store

Yammer update lets you preview Office and PDF attachments.

Yammer, the enterprise social network recently acquired by Microsoft, has been updated today. Among the features is the ability to view Word, Excel, PowerPoint and PDF attachments.

1.3.0.0 Update:
- Sign up for Yammer account from within the app
- Preview Word, Excel, PowerPoint & PDF attachments
- Support for higher resolutions
- Performance and security improvements
- Bug fixes including spellcheck