Widget for all site IDs

Hi - I’m trying to create a widget that graphs visitors etc for all site ids on one graph. Has anyone got an example of how this can be easily achieved?

Cheers!

For those that are interested, I see a Widget already exists and does exactly what we wanted style_emoticons/<#EMO_DIR#>/smile.gif NICE WORK!

http://dev.piwik.org/trac/ticket/389