We have just installed Piwik.
One of the main things we require is that the Piwik dashboard provides a widget/way to have multisites shown on the dashboard as summarized/totaled together by the various metrics we need & to have the option of also showing static image graphs based on that data.
There is an api for that to add to ones own site/dashboard but we couldn’t find a way to do that within the Piwik dashboard.
So currently there is a multisite dashboard, but it shows the sites individually.
thanks
lynn