Oe of the features of grid control that i'm going to try out is the cloning option Metalink note 579156.1 . this option allows for zipping up a client installation and running the oui
./runInstaller -clone -forceClone ORACLE_HOME=
ORACLE_HOME_NAME= -noconfig -silent
followed by root.sh
this makes it much system than the option broken push installation method.
The Dataguard performance monitoring piece has been completed rewritten for people not using data guard the performance graphs work pretty well .