Anyone come across dotlrn?

[mark]

Just had this email from a colleague:

I don't know if any of you have come across this?
http://dotlrn.org/

This appears to be a hugely comprehensive managed learning environment
application. Open Source of course! Have a look at the product summary
page to get a feel for what it can do http://dotlrn.org/product/

Also there are some good Flash demos of many of the applications at
http://www.dotlrn.org/demos-dotlrn/

There is an internationalisation package for UK English, but not Cymraeg so
far.

Looks a long way ahead of Moodle to me.

In terms of technology, this is a bit out of the mainstream. It is based on
open sourced AOL technology which provides a comprehensive, standardised
application runtime and development platform. See http://openacs.org/

[mark]

Apparently .LRN requires quite a different web server setup and needs
an Oracle or Postgres database - both more complex database systems to
setup and manage than MySQL.

I just want to know why I haven't seen this recomended.