I have to say this is pure genius: I "fell" for the JetBrains/IntelliJ IDEA IDE at 75% off (once the site shall be back up).
Whoever started it it's amazing to see other companies quickly react: I guess seeing servers melt under the load of people ordering products made some able to react fast.
The only thing that is too bad it's that it seems very hard to reproduce: rarely are there such doomsday scenario that gather that many attention :-/