About the law suit and why just one company. Thats simple. DM is the one that is spending the money. The took the best case for them to win. If they do it means money in their pockets to move ahead. If they win others will look to settle, more money. If they loose, the cost will have been minimal. If they win though watch to see how many others will have a fileing against them by EDIG.
If they loose EDIG is in the same position it is in right now. It has a fine product supported by airline companies that have faith in it and the possibilities of expanding their business has greatly inproved.
If they win in court its the icing on the cake.