This one actually showed up at Ponycon NY last weekend, but it will be heading to more conventions as the year goes on. We actually met up with them to give it a shot, and can tell a bunch of love was put into the design of it.
The idea was pretty simple. Everyone picked a specific set of ponies, each with a "cap" and card to represent them. Some had special abilities, while others were simply fodder. Unlike most card games, this one requires you to physically flick the caps at each others pieces, knocking them out. Unfortunately the table at the convention wasn't the best for this, but it still worked well enough for us to get a good idea on how it's played.
I'm sure loads more information will be released as the year goes on, but for now, get their press release and video below!