They're called events now. You can add them to the calendar or on the Events section of a project page.

Jason, I think the confusion is that your example Project is so nicely fleshed out, people use it to grok the entire range functionality within a project. Because there is no sample Event, people will miss the small "Add Event" link hidden at the top of the page.

That could be true. We made the call to get this sample project in at the last minute (literally a day or two before launch) so we couldn't get everything we wanted in there. We will likely include events in a future version of the sample project.

Same here. That's the only jolting aspect for us.

I suspect we'll have to use to-dos or calendar events. But calendar events don't seem to appear on the overview page and can't be checked off as completed either.

Anyway, clearly I need to keep investigating.