
Article here: http://www.fantasyflightgames.com/edge_news.asp?eidn=5021
X-Wing Mission Control is a free online resource that allows you to design and share new X-Wing missions.
X-Wing Mission Control’s custom editor allows you to easily create any play scenario you can imagine, whether it’s drawn from the Star Wars trilogy or completely unique.
Simply select the size of your play area and define the ships you wish to permit. You can create mission-specific squad-building rules, or you can identify any number of specific ships and upgrades. If you use Mission Control to track your collection, it will even identify any mission components not included in your X-Wing collection.
Furthermore, Mission Control’s custom editor easily allows you to select components from all available X-Wing products.
I guess it's for browsers only right now. No mobile.
YouTube video tutorial: