Anyways... Since Docker is written in Go, the only way Docker has been available for s390x was by building with gccgo. My guess is that native Go support is in the interest of Docker on z and would be a worthwhile investment for IBM.
I expect they're going to position mainframes as an ideal platform for CF installations (under a title like "BlueMix Z").
Man, what a name for a group!
> Going live with SAP enterprise applications is only the end of the beginning. In order to thrive after go-live, you need the right organization to drive continuous business improvement.
Even better is that it's often used for I/O intensive (eg networking) applications. Mainframes' Channel I/O blows traditional server architecture away in throughput. Should give a boost.
https://sourcegraph.com/blog/live/gophercon2015/123645585015