A new web based application has been released called Lync Web Scheduler. The application allows users that don’t have access to Microsoft Outlook or users of operating systems other than Windows the ability to Schedule and Manage meetings.
The functionality is currently basic. Once you have created a meeting, you will receive a link that you can use to send to the participants of your meeting. You do have the option to export the meeting to native calendar applications like iCal on OS X. The functionality will allow users of other operating systems such as Linux and OS X, or users without access to Microsoft Outlook