I was so overwhelmed and excited by the sheer piratey goodness I totally just ... did not take any notice of the plot. (plot? what plot? there were pirates! rum!)
Anyway, I do remember Barbossa's boots when the monkey skipped away, but I totally missed the locket stuff. *headdesk* Apparently Tia Dalma had a heart-shaped locket that was mysteriously like Davy Jones's, and it was in the shot when Jack took the ring, amongst others.
Speaking of -- ring! Future plot point ahoy?