Lync got an update for iOS tonight, and there was one particular feature I found interesting: the ability to join any Lync meeting, even if you yourself is not a Lync user.
Here is how it works:
Click on the meeting invite, like this one:
This will bring you to the well known meeting page. But instead of staying there, with Lync Mobile installed, Lync will launch and ask you how to connect:
You may now select to connect to the meeting as a guest (just as the website will). Enter your name, and connect to the meeting.
Here is a short list of the other new features/fixes as well. Great work team!