You can now sort / see when your project is created. This is great for keeping track of multiple jobs you have with a client and sorting by the dates created on them.
Another great use for this is with leads. With the created date, you can view and sort by when the lead came in. That created date will be the date that your lead was received via lead capture or inputted manually.
You can, of course, turn this off by clicking the CUSTOMIZE button on your project page and uncheck the created date box.