Yes! OGo is a direct descendant of the SKYRiX 4.1 groupware server 
which is stable for years. So there will be some minor SKYRiX=>OGo
conversion bugs, but the sources in itself can be considered stable.
<br />

Note: OGo currently only provides packages build nightly for a
limited set of distributions (Debian and glibc 2.3 based RPMs). So
if you are Linux beginner you might consider consulting your local
Linux administrator, buy a SKYRiX distribution or just use the
Knoppix for testing:
<br />

The simplest way to get something up quickly is to use the 
<a href="../../knoppix/">Knoppix CD</a>
which was contained in issue 08/2003 of the german 'Linux Magazin'.
If you can't get your hands on this magazine, you can also
download the ISO file from one of the 
<a href="../../knoppix/index.html#download">ISO mirrors</a>.