Kill Switch for Technology Use in Classroom

A recent Chronicle article reports that Bentley College has an on/off switch installed in their wired classrooms with 5 options:

• Turn Off Internet Access But Allow E-Mail Access
• Turn Off E-Mail Access But Allow Internet Access
• Disable Internet and E-Mail Access but Allow Computers to Reach Campus Web Pages
• Shut Off All Access
• Allow All Access

With wireless classrooms, you can also have a 6th option: Turn Off Wireless Access. (Or maybe it's part of the "Shut Off All Access" option; it's hard to tell the way the article reads, but it's not that important a difference). What I was interested in is this Kill Switch in general. Maybe it's SynchronEyes that they're talking about ....where we can monitor each of the the students' screens from the instructor's station and toggle settings there. I'll have to check that out.