JustinCC has posted an update of latest fixes and features to Opensim Server Core.
Of note is this one: "Michelle Argus contributed a patch so that permission to execute individual OSSL functions can be enabled for the group of the parcel the script is on and/or the parcel owner and/or the estate manager and/or the region owner. This is in addition to the existing ability to enable individual function permissions for everybody or an individual user. Please see the [XEngine] section of OpenSim.ini.example for more details (41395d5)."
This is significant and will allow group members to do cool things leveraging the OSSL (Opensim Scripting Language).
I must write a post about the various OSSL functions sometime. In short they allow some cool stuff to be done. Way cooler than Second Life LSL functions.
Justin's post here: http://justincc.org/blog/2011/11/02/this-week-in-opensim-dev-week-ending-saturday-29th-october-2011/.
The OSSL functions: http://opensimulator.org/wiki/Category:OSSL_Functions