The widget now has a valid ssl certificate, so you can use https://widget.mibbit.com on your site if you wish.
There’s still one or two things that are coming from non HTTPS servers, such as the tab backgrounds, and image thumbnailing. These will be updated to use https at a later date.
Work is progressing nicely with a new version of the main client, but it’s not *quite* ready for release. It has some fairly big changes in it, so I want to be sure it’s not going to break anything