The judge hearing the case ordered the lockout lifted, so the NFL could "resume work." The NFL appealed.
She did not offer any other guidelines, so essentially the end of the lockout is more symbolic than anything right now. It gives the players access to team facilities for workouts, and gives them the upper hand in negotiations.
But beyond that - its anyone's guess.
There could be a free agent period, but then the rules around that would be determined by the NFL, and ultimately could be undone by collective bargaining. There still can't be team workouts/practices. Contact with coaches is still questionable at best.
And there's still the anti-trust case to be heard by another court.
In other words, it went from being a mess to being a slightly different mess.