These are Multitasking Virtual Machines with very nice, high level (i.e. language level) isolation between untrusting components. The information I could find about them all dates back to around 2006
- http://bit.csc.lsu.edu/~gb/csc7700/Reading/OOPSLA01_p125-czajkowski.pdf
- http://weblogs.java.net/blog/mlam/archive/2006/11/multitasking_th_1.html
With lots of interest, but seems to have abruptly died there and then and nothing has been published ever since. What happened to them? Was there a single "we shall stop working on MVMs" decision, or did interest just wane and the projects die naturally?