Sorry, Z Axis... There is nothing out there that compares to the Zenmuse right now, and feel for near future... A lot of companies want this tech to work, but they don't have the the Money, and resources that chinese defense contractor would like DJI, and those we see what is happening now... Dji will eventually be the benchmark for this industry for civilian use in the next five years, do to there resources man power and lower wages, that part of big businesses of today.
Also I have talked to DJI, and they are in the process of making a zenmuse for Small DSLR right now, and are in the testing fase, there also working on a zenmus for the 5D m2. This one won't be available quite some time I fear.
In terms of Gimbals hands down DJI wins. But there still is a lot to be desired from a more professional market. I'm sticking a
Zenmuse on the bottom of my SJ when she all up in running. You just can't beat right of the box performance for a fraction of the new Photohigher Gimbals that are going to be released. For Example a reliable source let me know about the price of the new Gimbals from photo higher, and it's plain and simply staggering how much they are thinking of asking.
Gimbals from photohigher
Go Pro : 1500- 2000 dollars
Nex 5n- 10000- 15000
DSLR- 25000-40000