As you've probably noticed already we've been making a few changes to Area51 and the development section on the main site. The duplicate content on the development section on phpbb.com has been removed in favour of a very visible link to Area51. With the new header it's easier to access all the different parts of our development site without getting lost. And with the exit link on the top right you can easily return to www.phpbb.com.
We've also already added 2 new informative development pages to the main Area51 page. The contributors list gives you an overview of everyone who has commited to phpBB through GitHub. You'll show up there as soon as a patch of yours has been merged into phpBB. The statistics page currently displays some graphs from the tracker that give you an idea of the overall state of development. This page will be extended with more statistics over time.