Exposing MIM Portal data via a web service?

Hi,

We have a requirement to integrate MIM with the GNU Mailing List Manager (www.list.org).

We'd like to be able to dynamically (or manually to begin with) manage List membership in the MIM Portal; and are planning to create a new MIM Portal object call 'List'. The GNU Manager would then need to pull the data (membership and list names in somehow).

Hence got a few questions:

1. Is it possible to expose our new 'List' object via a MIM Portal web service (for the GNU Manager to consume)?
2. Is it supported (by Microsoft) that something like the GNU Manager extracts data from the MIM Portal, via a web service interface?
3. If the above are either not supported, or possible, we will then export the data to another supported application/database and expose it via an API

Thank you,

SK