The final decision to include or exclude anything in GetIt is made by Embarcadero Technologies. We are looking for libraries that bring value to developers using our tools, doesn't conflict or circumvent the the higher end SKUs (adding Client Server technology to Professional), has acceptable licenses and targets the latest versions of RAD Studio.
Also, please make sure you are a product manager or owner for anything you are submitting. For open source projects please get the primary project manager involved. There is a comments question at the end where you can explain your relationship to the project if it is complicated.
You can read more information at http://community.embarcadero.com/index.php/article/news/16027-submitting-libraries-to-getit