Ok so far we have come up with some idea's what happened in this ep... First that it was all a dream, which has been discredited by the writers... The other, that it is some sort of time travel which some time ago was discredited by the writers.. What other options do we have to answer this question??? It couldn't be in Desmonds head unless he did see the picture for real in the office.. I'm so confused by this?? Anyone have any ideas???

__________________
Please don't give up, Des. Because all we really need to survive is one person who truly loves us. And you have her. I will wait for
you. Always. I love you, Pen

DESMOND: I love you, Penny. I've always loved you. I'm so sorry. I love you!
PENNY: I love you too.
DESMOND: I don't know where I am, but--
PENNY: I'll find you, Des--
DESMOND: --I promise--
PENNY: --no matter what--
DESMOND: --I'll come back to you--
PENNY: --I won't give up--
BOTH: I promise. I love you.