Nice component. Unfortunately, the "link only" option that is contained in the sourcecode cannot be set from the admin backend.
If you want to not have the discussion in your content items, you have to edit the sourcecode. It would be good to be able to set the number of listed items to 0. Currently this resets it to the default value of 6.
And as a sidenote: A comment like
// TODO: Sadly we may have built the quickpost form et al without needing to...
that voids most of the stuff that has been done before after one single if statement is really sad

It's not too hard to make that if a litte bit more up front...
Besides that: Nice mambot
Cheers, Enlightning Man