On Greenfoot site until recently was a package "Greenfoot and Bluej standalone on USB stick". Into package was included, as well as BlueJ 3.1.4 and Greenfoot 2.4.1, the JDK. It was really helpful and allowed teachers and students to have on a USB everything necessary to work on any computer on the school and at home, even without administrator privileges. Now this package has been removed, there's only a GreenFoot 2.1.2 and JDK 1.6 release.
I think it would be very useful to restore it in an updated version.

