The others must know that powers like this exist and can be posessed by anyone on the island. BUT

I just have this wierd feeling that the others don't know about Desmond. It's like an itch at the rear of my head, but on the inside. does anyne else get that. it's like spidey sense, but for Cables.
But seriously, They had NO CLUE about the sailboat, so they obviously don't know who sailed it there. I have this feeling that Desmond is going to save all of the Losties, because he is not in the Others equation. They may be con men, but they can't be good if not all of the option are known.

make sense?