One of the biggest problems with creating new versions of an editor is that they tend to break the data produced by older versions. Adding a new feature routinely means adding new data fields to whatever is saved by a program, and thus the file-loading method used by one of the editors may not work for other versions of the same editor.
This is a big problem with the current editors: I can't update them, because the data they save would go kaput, and all of your work would be lost. So what can be done?
I'm most of the way through developing a system of version-compatibility for the next editor via Import and Export commands. This means that I can keep releasing new versions of the editor without killing what's already been made.
Just keepin' you updated!
Karl
Also: Tuomo, if you're out there, email me...!