Yes, clearly Jack and Ana-Lucia are being set up for each other, and Jack/Kate is never going to happen - clearly he has a thing for athletic independent-minded women who are good with guns. But what I noticed in the most recent episode was how on the edge Jack himself is. He's far from being as perfect as everyone thinks. (Oh, and Jack and A-L just flirted a bit in the lounge before the flight - A-L had been behind him in the queue when he was ranting at the desk girl to get his father on the plane.)

Eco, on the other hand, is indeed Locke without the dangerous need to believe.

And when's Delenn coming back? (This island is getting pretty crowded!)