Hi Magnus,
Snap Creator should run on any Linux version, there are no OS hooks. We have heard of people running it on debian, centos, fedora, bsd, and many other flavors.
I would full expect it to run on all Redhat and SuSE versions. We currently support RedHat 6 and SuSE 11.
What is officially tested / supported is documented in the IMT: http://now.netapp.com/matrix/
Just change "storage solution" to Snap Creator Framework and then you can look at what is supported at this time. The IMT is updated with every release as we do currency testing.
Regards,
Keith