Here's a look at a few new DJI OSMO accessories, a few old ones, and how it all comes together for a nice 4K capable travel stabilizer. The Z-Axis Arm is an add-on to help smooth out any up/down jerky motions caused by walking. I feel lightweight gimbals are more prone to this movement as there is not enough mass. The Z-Axis is similar to the ISO arms you'll find on a Steadicam Vest.
The Extended Battery Adapter is a great addition if you already have DJI batteries (Phantom, Inspire1, etc) and want to shoot all day. But with the new firmware update that is supposed to give you longer run time on the stock batteries, you may not need the external battery.
The Extension Adapter will allow you to get better position for mounting some of your items. I think relocating the Phone mount behind the rear of the OSMO is a great spot and you'll be able to tilt as needed.
The Universal Mount comes with two cold shoes that will let you mount additional accessories such as an LED Light or the Rode VideoMicro - which is also sold on the DJI website now.
These are only a few items I think I would be using, but there is a number of expanded accessories available now from Bike Mounts, Car Mounts, Magic Arms, and even camera/gimbal upgrades to the new X5. Check out the DJI OSMO accessories page (here).
Kamerar has released a few GoPro accessories that allow you to get more creative with the Hero3/Hero3+ cameras. The new Kampro Handle Kit works with existing GoPro housings (waterproof / skeleton) comes with 1x Handle, 3x Thumb Screws, 2x Threaded Pivot Arm, 1x Pivot Arm, 1x Phone Mount, 1x Tripod Mount, and 1x Cold Shoe Mount. The Kampro Handle Kit can be found (here).
Kamerar KamPro Handle Kit for GoPro Hero Cameras
When you want to run the GoPro 'naked' (without the waterproof housing), Kamerar has released an affordable GoPro Cage. Made of precision CNC machined aircraft grade aluminum, the new Kampro offers a few cold shoe mounts (a feature not found on other GoPro cages) ready to accept microphones, led lights, or other accessories.
A single knob locks the GoPro Hero3/Hero3+ in place while still allowing full access to ports, buttons, lcd screen, MicroSD slot, and fast access for battery swaps. A lens cap fitted over a 37mm threaded filter mount is ready to accept your ND, CPL, or other popular filters. For more information on these products, check out the http://PNCGear.com website (click here).