Basically adds a counter to your minimap telling you how many soulshards you have.
http://forums.worldofwarcraft.com/thread.aspx?fn=wow-warlock&t=11497&p=1&tmp=1#post11497
http://forums.worldofwarcraft.com/thread.aspx?fn=wow-warlock&t=11497&p=1&tmp=1#post11497