Apple would not get an injunction, but it could get a declaratory judgment. Apple could get a judgment for invalidity or non-infringement.
You are right though, legally Apple is in a different position from the app developers that are being sued, and that probably poses some problems. The terms of Apple's license with Lodsys might hamstring some of their arguments. Apple might not even have standing to get a judgment of non-infringement. On the other hand, if Apple had filed for declaratory judgment, it could have chosen a venue other than the Eastern District of Texas, the plaintiff-friendly federal court that Lodsys chose.
It's a complicated decision for Apple, and it's more than just choosing to stand up for developers or not. Apple was probably in the process of evaluating the strength of their position when Lodsys rushed the issue to the courthouse.
You are right though, legally Apple is in a different position from the app developers that are being sued, and that probably poses some problems. The terms of Apple's license with Lodsys might hamstring some of their arguments. Apple might not even have standing to get a judgment of non-infringement. On the other hand, if Apple had filed for declaratory judgment, it could have chosen a venue other than the Eastern District of Texas, the plaintiff-friendly federal court that Lodsys chose.
It's a complicated decision for Apple, and it's more than just choosing to stand up for developers or not. Apple was probably in the process of evaluating the strength of their position when Lodsys rushed the issue to the courthouse.