saw that this morning too.
Eleusis - I've never used a dummy with any of my DS's (although am contemplating one for DS3) but both DS1 and DS2 used to like to fall asleep sucking "something" - in DS1's case it was my breast - and he then couldn't be moved, and DS2 it was his bottle - we'd feed him and he'd fall asleep we'd then wind him and put him in the cot, he'd then stir/wake up - so we'd let him suck on the bottle (usually a few dregs left) for a few seconds - he's then fall asleep and we'd take the bottle away........and he slept all night from really early on - never had an problem with him waking up looking for it.
The article does also say that you shouldn't force them if they don't want it (the baby that is LOL) and to wean them off it around 6 months (when it's easier to do most of the 'sleep programmes' eg CC, No cry) with them.