the pricing for Lync was publicly made available recently and can be viewed here: http://www.microsoft.com/en-us/lync/pricing-licensing.aspx.
It follows the same Server/Client Access License (CAL) model as OCS 2007 R2, which essentially has 3 types of licenses you may need to purchase:
1. A Lync Server 2010 License: this is required for each operating system running Lync Server.
2. Client [...]
A new update is available for components of the OCS 2007 R2 server.
The download and details are availalble here: Microsoft KB article 968802 (”Updates for Communications Server 2007 R2″): http://support.microsoft.com/kb/968802.
Included in this update is a fixe for the Response Group Service (http://support.microsoft.com/kb/2400367/), and fixes the previous CU6 issue with the Response Group Service issue (http://support.microsoft.com/kb/2400367/).
This week has been a flurry of activity with the re-branding of OCS and the Release Candidate being made publicly available.
Here is a list or 10 resources I found useful for getting up and running with Microsoft Lync Server 2010:
The Microsoft Lync Home Page on TechNet
Microsoft TechNet System Requirements, Planning Primer, Lab Deployment Guide
Introducing Microsoft [...]
Some significant announcements today – the next release of OCS, Microsoft Communications Server “14” (aka ‘Communications Server 2010’), and the associated client software (e.g. Office Communicator, Live Meeting, etc…) have all been re-branded under the name “Microsoft Lync”.
The official Microsoft press release can be viewed here: Microsoft Lync: A New Name for a New Generation [...]
Three recent OCS developments you should be aware of:
1] Communications Server 2007 R2 Does Not Support Microsoft SQL Server 2008 R2
An official statement was released regarding OCS 2007 R2 not supporting SQL Server 2008 R2 for the back-end database. The primary reason is that OCS 2007 R2 hasn’t been tested with SQL Server 2008 R2 [...]