I saw one of these (or a similar thumb-grip decanter) at the Santa Barbara Winery. I was wondering where I could get one, now I know! Thanks, woot!
It looks very modern and cool, though the person holding it mentioned that all the volunteers worry about breaking it, presumably because it feels somewhat unnatural and less secure to hold it with the thumb-grip. I suppose you could hold it by the neck as you would a conventional decanter, but then what would be the point of having a decanter with a thumb-grip in the first place?!
Besides, those fussy among us may prefer not to put fingerprints on the neck of a decanter and rather to hide their finger smudges on the base and in the thumb grip, maybe?