One thing you can make a legitimate issue out of is not that Delonte hasn't gone to court yet, but that he wasn't suspended by the league; in fact, he hasn't faced any disciplinary action from the league at all as far as I'm aware. Arenas, of course, was suspended for the season.
See my post above yours regarding why he wasn't suspended... yet.
I understand the differences in circumstances that you outlined, but I still think Delonte's actions probably warranted at least a few game suspension. The way it worked out, Delonte didn't play for more than a few games anyway due to his condition, but he should have been suspended for a bit regardless (though by no means for any large portion of the season as Arenas was).
My point was, that he will be suspended. But they're aren't going to do it until its legally resolved. Delonte hasn't said a word about yet, one way or the other so you can't really suspend him for suspicions.
I do think the commish was gonna hold off on suspending Arenas, but then Arenas decided to make it a public joke and furthermore, ADMITTED to it. So the league really had no choice but to punish him.
People are up in arms (I don't mean you, specifically) but I feel pretty confident in guaranteeing that he will face some sort of punishment from the league once they no what the parameters of his situation are.
EDIT: didn't see Roy beating my to the punch again lol