@cooner
Wordpress is open source blogging software run by a non-profit over at Wordpress.org. You can run the Wordpress software on any server you’d like with any web hosting service.
Wordpress.com is a for profit website run by the head of the non-profit which hosts Wordpress blogs.
You can technically use Wordpress as pure open source software, but anything new or vaguely “service-y” within Wordpress was starting to get built as a plugin by the for-profit Wordpress.com folks. They also managed the biggest plugin and theme repositories.
The head of Wordpress.com has a beef with competing for-profit hosting site WPEngine.com. They claim they’re not giving back to the open source project enough. (That’s not how open source works for what it’s worth.)
Wordpress.com is withholding all its extra bits and plugin repos from WPEngine. They’re also sending a lot of legal threats back and forth and generally being Extremely Mad Online.