Ironclad Games and Stardock have begun taking Pre-Orders on their upcomming Sins of a Solar Empire Addon - Sins: Diplomacy. Bringing a Diplomacy Tech Tree to the fray, as well as new units, trade pacts and pirates with more teeth  - this $9.95 addon requires a full copy of Sins of a Solar Empire and the addon Entrenchment to play. This is in addition to the Ready to Play feature being tested on Stardocks Impulse network, allowing players to find friends and foes online and communicate the desire to play and facilitate this. Pretty much a Battle.Net with facebook as seems to be becoming the norm for Single player games wallowing in MMO space.