Unlike Windows Live Messenger, the new generation instant messaging software Lync 2010 are enterprise oriented. It is just released at the beginning of this year. So is Dynamic CRM 2011. Hence, the specific solution likes Dynamic CRM 2011 - Lync 2010 integration will be scarce.
These days I am working on a new project that could listen to Lync 2010, catch the events, communication with Dynamic CRM 2011 and finally pop-up related record windows. It should work both in outbound and inbound call.

Prototype Screenshot
Briefly speaking, our add-on will pop a CRM record based on the caller ID of the outbound and inbound call.
• It could login to Lync 2010 automatically.With this project, every time before we make or receive a phone call for Lync 2010, we could be familiar with the opposite side in advanced; we could know the details and information about current participant and conversation; we also could write down some essential notes into CRM record about this conversation.
All of these make our communication and work easy. I would explain more with the progress of this integration project.