A wrist loop was featured on Clare's dress in The Time Traveler's Wife. Brides.com says: "At the reception, the newlyweds dance in a garden lit with romantic paper lanterns. Removing her veil for the reception, Clare also lifts the skirt of her wedding dress with a special wrist loop that Weiss added so that the bride could dance easily."
(source)
I've googled a bit, and haven't found much else on my beloved "wrist loop". I did find a thread on Yahoo! Answers that was very-anti wrist loop, but I remain enamored.
I have concluded that there are two major factors that should be considered in the wrist loop versus bustle decision:
1. Length of dress train
2. Weight of dress
I haven't revealed my dress yet, but I can say that it does meet this criteria (i.e. it's not very long, or too heavy). Being anti-bustle, I'm definitely optimistic that this is a great option. I'm a girl who is happy to carry a clutch, or a purse that fits in the nook of my arm so I don't think I'd be bothered by having something to "carry".
I also saw this photo on the back cover of the latest issue Southern New England Weddings. Trend, perhaps?