I’ve created a Simple In/Out Board Widget for Dashing. It’s quite basic, but it gets the job done. It reads the status information from a text file, so there’s little overhead and no pretty interface, sorry. We keep our text file on Dropbox, so any of us can edit it easily.
Unlike most of the other widgets we’ve created for our Dashing dashboard at the office, this one might be useful for other people. So, I’m sharing it. If you’re interested, you can install from this gist.
Update 2015-12-10: Someone in the comments was trying to get this to work with Google Drive. I tweaked the widget a bit so it can read a file from Google Drive. The gist has been updated.