That means if you have a Cricut Personal, Cricut Create/Cake, Expression/Cake, Imagine, E2 or Cricut Mini they will no longer be able to be used online with Cricut software.
All of the above, with the exception of the Cricut Mini, can be used as a standalone machine using the physical cartridges.
Cricut are offering legacy machine owners who have not yet upgraded to an Explore $75 off an Explore or Explore bundle from Cricut.com.
To qualify you must be an active Cricut Craft Room user and you must have created your Cricut Craft Room account before April 28. If you did qualify you should have received an email from Cricut.
There is a lot more information available here: http://inspiration.cricut.com/cricut-craft-room-closing/
For those who own the Personal, Create or Expression (plus the Cake versions) and own Sure Cuts a Lot V2, you will still be able to use your machines with that software. The same applies to the older version of Make the Cut.
Sure Cuts a Lot 4 or Make the Cut V4 does not work with any of the Cricuts.