Very good comments.
As a learner of dotLRN (I'm a moodle user already), let me add some things:
1) dotLRN should target 'research' oriented market, with more research utils developped.
2) dotLRN should learn from Moodle in terms of ease use (not the market share). In this postmodern world, no matter how powerful your tool is, if people cannot learn to use it easily, you are dooomed to fail.
Take one simple example, I just installed dotLRN. As an administor, I had hard time figuring out how to let forums in My Space work, cannot add "classes", etc. Without enough patience, even professionals would walk away from wonderful product. Don't think that dotLRN is not well adopted because not enough people dont know it---many people know it. It is just so hard to use it.....
