I haven’t seen anyone else who is experiencing this yet, but around 7:15pm Eastern tonight I noticed that the following information box on Twitter.com. Yes, after nearly three years, Twitter appears to be experimenting with live updates.

Or semi-live. Twitter tracks your updates as they happen, keeping a running count of updates which appear to refresh every minute or so. Hovering over the box changes the color, and clicking anywhere on the box refreshes the page. A darker gray line divides the newly loaded tweets with the older ones.

The unread tweet count also appears in the page’s title tag, which means that tabs and windows will display unread tweet numbers.

It’s not a huge change, not earth shattering, and the constant updating numbers can even be kind of distracting. But, the new feature shows that Twitter is still, slowly, making changes to the base service.

Click here for a full desktop view.