Yes, Dragon Commander was originally called Project D.
It is a strategy/action/RPG game, where you play as a dragon knight battling other dragon knights to become the dragon commander. Your base ship contains NPCs you can talk to and make various decisions (the RPG elements). Setup for combat is a board game like turn based strategy section, where you distribute your troops, determine where you wish to attack, beef up defence where you might get attacked and decide which battle you will participate in yourself (the rest are handled by AI). Combat is in real time, and you can take charge as a dragon and play it like a straight action game, direct your allies as required, focus on your allies and help out where needed as a dragon, or zoom out to an overview of the battlefield and play it like an RTS game.
Project E is a traditional RPG game, which has been compared in general terms to DD. For now all we know is that it will have a top down camera view and that we will be able to defeat the main bad guy in the end. It will be officially announced at E3 in June.
