Very useful, one feature idea would help me tremendously

This definitely speeds things up for me with my newsletter list management, but I would love the ability to also remove contacts from a list as well. Perhaps a sync feature.

This is how it would work:
I have a contact group for my newletter recipients. When I want to remove a contact from the list, I simply delete them from the group. Chimport then (on-demand) can sync the updated group list and remove any from the Mailchimp list that I’ve deleted from my contact group.

5 stars if you could do this!

Steve Castaneda about MailChimp Import