[Pxtl]

Appleism. They use the words "Get Info" where Windows says "properties" in OS X too, including cases where the properties/info are editable. One of those cases where Apple is stuck with a bad decision they made a long time ago.

[DougBTX]

If you drag the reminder row to the left (only when in non-edit mode), two buttons appear on the right. The "More" button also shows this popup.

So, the popup is shown by clicking on a bright blue "i" in a circle or a square dark grey "More" button, and the title of the popup is "Details"...

Also, if you type and press enter too quickly, you can make the app crash.