UGE is open core and not open source
AFAIK UGE is open core only but not open source
and UGE really donot care about opensource community and
Univa want to make $$ just like Oracle want to make money with Oracle GE
.
Oracle has yet to decide what to do with OGE the group is part of OEM, but most Oracle products already has some job scheduler already
The OGE codes(very old) seems not to fit into other products easily
Also only few SGE developers are with Univa
Sun/Oracle used to publish the bugs fix list for each updates, the codes has many bugs but only few bugs are important that are in your way of running jobs
The Open Source community is alive and good support on the user list
current release are sge6.2u5p3 and GE2011.11p1