** This article is in progress and may be updated. **
Looks like Android is #2 to be released after Windows Phone with iOS versions still coming. According to a Technet article released earlier this week, Lync Mobile for Android will have a few less features than Windows Phone, iPhone and iPad in the area of Telephony Support. To see the complete list of features click here. (especially telephony support section, as shown below)
Looks like Microsoft has designed a very nice and clean interface for the Android version of Lync Mobile. Just like on Lync for WindowsPhone, on login you may need to type username for successful login. My Android toting colleagues are reporting the Android Lync Mobile client UI is a smooth and pleasant experience. Also, Lync notifications are received even if the Lync Mobile app is not running since Lync utilizes Android “Background Data” feature.
See screenshots below.
Dialer screen. (Lync for Android does not call as work but will call #’s directly)
Handling multiple chats screen
Android device Sync Settings