Why the dashboard says Activity
The request history became Activity, and billing moved below the pages you use to work with the API.
The page where you look through your API requests used to be called Logs. I changed it to Activity because that felt closer to what you're there to see: which requests ran and what happened to them.
Logs is a perfectly normal developer word. But the page is part of your account, and Activity makes sense without thinking about how those records are stored.
I moved billing down in the navigation at the same time. It had been right after Home, ahead of getting a key or checking usage. I'd rather put the things you came to use first. You can get to your bill when you need it.
Small changes, but you read those labels every time you open the dashboard.