Note the "unsupported":

The packages in this directory are
* only for testing
* without any guarantee or warranty
* without any support 

As an extreme example, this means that if your complete computer center
crashes because of these packages, it is only your problem.

Nevertheless, we are very interested in your feedback because the more
people test it, the more problems (even hidden problems) are revealed.
To send us feedback, please follow the instructions in
http://en.opensuse.org/Submitting_Bug_Reports
and make it obvious which package, which package version, which hardware
architecture and which SUSE Linux version you are talking about - e.g.:
"Feedback regarding Foo-1.2.3-4 for SUSE Linux 10.1 on i386 hardware"