I’m voting for this feature, too. I often find myself working on one project in everdo - doing real work. Then someone asks me for information on an other topic / project, then I have to to leave the current working context to find what was needed and come back.
The mental cost of switching back and forth between parts, lists and projects is quite high in this case.
See my earlier request Desktop: Multiple instances of Everdo If possible, please add it to the development roadmap.