
Just a guess here, but in 4x01 we get to see a picture of Hurley and the "Lawyer of Oceanic Airlines", Correct?
THe way he spoke almost made him sound as if he wasn't from America at all but, Africa.
Who else is from Africa? Eko
And who did Eko always talk about?
His brother. =3
I really think that was Eko's brother for some odd reason even though he had 'died' on the island. But there isn't any real proof that Eko's brother had died only the golden cross which could have been on any of the drug dealer's necks since they all had dressed up like priests to send the drugs in a plane.

BUT STILL this is just a theory of mine, nothing else. :B But I think the two are really connected.
another thing about season 4's first episode.
A woman that was in the background of the scene where you see Hurley and the lawyer looked like libby, although you never get to see her face. And the other scene where CHarlie appears, a woman is sitting on a bench that looked like her also. It's a little hard to spot the second 'libby' but I definatley think that was her.
So yeah!
Feedback is much appreciated!