All,
We'd like to start interaction with YAHOO, MSN, AOL and GoogleTalk users but I don't know how to apply for PIC. Is there a document that outlines the procedures.
There is a detailed LCS 2005 document that explains the process:
http://www.microsoft.com/technet/prodtechnol/office/livecomm/library/updatesp1/lcsusp_7.mspx#EVC
Also, PIC does not include Google, only MSN, Yahoo, and AIM.