One of the main features will be Eve Gate, which will act as the communications hub between the two games both in-game and out. Players will be able to setup contact lists, check in-game mail, post on forums, and setup calendars with events amongst other things.
Corporations play a major role in Eve Online and will as well in DUST 514, which will be seamlessly integrated together, allowing corporations to recruit players from both games.
The idea is that a corporation staffed with members from both EVE and DUST 514 should be able to access all available functions. Common functionality includes creating corporations, managing membership, managing finances, and joining alliances.
There will be of course both voice and text chat available to players to communicate with each other from both games.
DUST 514 players also get their own War Room, where they can go to view vehicle and character specs, stock up on items from the marketplace or corp inventory. The War Room can hold up to 32 players at a time, so players will be able to chat with fellow corp members or hires and strategize about their gameplan.