All in all, minor issues, but: you filter out "target" attributes on URLs. I have links in my dashboard that I want to automatically open in another window so I don't close the dashboard window. Not sure why "target" is a banned attribute.

Also, public loop URLs don't appear to actually loop: I have 2 dashboards both added to the public loop, and nothing I seem to do will make them do that in either Firefox 11, Chrome 18 or Chrome 13 (on my Google TV that I use to display on a big screen).

Also, making your push interface public WOULD be a significant improvement over the existing interface: it gets tedious having to write authenticated web handlers purely to feed data to the dashboard, I'd much rather write cron jobs to do that.