Hi Rob, as an LSU, we have 3 secondary schools very interested in taking on learning gateway. Their main requirement for them is to be able to access both Assessment Manager and Profiles on a read/write basis. The new version will allow them to do this. There are other benefits as well, in respect of allowing read only access for parents and pupils. Also as an LSU if we host LG, then not only does it mean it's easier to support but the price is reduced significantly for the schools.
I also saw a presentation by a school who were using LG as 'watered down' version of a VLE. This is something that we are investigating for our Primary schools instead of an over-complicated VLE.
In terms of having 'full rights' we are looking at alternative solutions for the admin staff who require full acces. However from discussions with the schools the number of staff this applies to is minimal. They certainly don't want all staff to have full access rights.