Nikon have just released the latest model in their 1 series of mirrorless interchangeable cameras the J4. While it improves various specs like putting in a 18.4MP sensor, new touch screen and allowing you to shoot 1080p/60fps or 720p/120fps the biggest improvement that comes with the J4 is the ability to shoot at 20fps burst mode. Made possible with the new Expeed 4A imaging engine, there is basically no reason to buy the older J3 now.
Unfortunately the J4 also uses MicroSD instead of the regular SD but to make the camera smaller than its predecessor at 232g and 99.5 x 60 x 28.5mm.
The 1 J4 will be available in Orange, Silver, White and Black and will start selling in May 2014. Price is unavailable at this point.