http://www.microsoft.com/downloads/details.aspx?FamilyID=6d6848ec-e7d6-41f4-82d9-5bed3526fcbd&displaylang=en

“Web Scheduler is a 64-bit tool for Microsoft Office Communications Server 2007 R2. It provides a Web-based alternative to the add-in for the Microsoft Outlook messaging and collaboration client for the purpose of scheduling a meeting using Office Communications Server 2007 R2. It also provides a browser-based conference management experience that includes operations such as:

• Scheduling a new Live Meeting conference or conference call.
• Viewing and modifying details of an existing conference.
• Listing all existing user schedules of a Microsoft Office conference.
• Deleting an existing conference.
• Sending an e-mail invitation to conference participants by using a configured SMTP mail server.
• Joining an existing conference.”

I need to lab it before I can say anything about it, but it seems like a great addition to the family! Needs to be installed on the same IIS server as the OCS 2007 R2 web components.