Using Dato to do this now, and it is awesome, but this function should be in the TimePage app. "Display next event in Menubar" with options for showing Time (of event or count-down timer) and event name, and perhaps an option to flash when approaching the event time. Unlike widgets, the menubar is always visible while working in an app (unless in full-screen mode). For widgets to be visible, the app window must be made smaller.