The only claim which may be viable (debatable) is the claim of being able to purchase items without interrupt game play. For example, running out of hypos in a missions and something pops up and allow you to buy more hypos. Star Trek Online doesn't do that. To go buy something in the game, you have to go somewhere interrupting game play.
Multipass! I mean multitask. :p
I don't have to park my rear in a corner to play around with the replicator or C-Store. (yay autofire/boffs?)
And am I the only that gets a slight deja vu about that time when someone sued MMO companies about some patent to online gaming or whatever?