In order for developers to know if tests are running AND there aren't any regressions, we should have a dashboard that shows 3 OS's (Win, Mac, Linux) colored red or green.
Basic implementation would simply be 3 large squares with the OS logos and a red or green background.
Criteria for status would be:
1) Tests are running
2) No regressions (+/- a certain % compared to the last 2 weeks?)
3) All 3 test machines are in agreement.
This will most likely need to run as a cronjob that checks these criteria.