I was just informed of the earin wireless earbuds being developed in Sweden. Unlike JayBirds BlueBuds X Wireless and the new Beats PowerBeats2 Wireless, the earins do not have wires connecting left and right ear... each is its own separate earplug.
They come in a cylindrical case / keyfob that charges them when not in use. They have balanced armature drivers. Here is a link:
They are scheduled for sales in early 2015, at $270 a pair. You can fund their development under kickstarter, if you wish, and get them for less or for free, depending on what you fund.