Dark Souls - GFWL Removed

Dark Souls for PC has finally had its GFWL elements removed.  According to the official announcement, players have until February 16th to migrate their saves and achievements to Steamworks.   Instructions on migrating Dark Souls saves and achievements to Steam are available here.

Update:  I forgot to mention this earlier, but, as noted by Xian in the comments, DSFix has been updated to work with the Steamworks version of Dark Souls.  More information is available here.  If you do not recall, DSFix is a program that gives you more control over the display options of Dark Souls.