Here's a brief recap:
Adaptive keys with LCD keys that can change appearance and are programmable to skills and also can handle your regular apps. They are also multitouch capable allowing you to skip a mouse, if you prefer.
Interchangeable faction emblems with 10 programmable keys on the side. It's based on the Razer Naga Epic.
Made of hard metal that can be flipped either way to show your chosen faction.
5.1 surround sound lightweight full-ear coverage with a flexible microphone. USB ready and lighted which may be programmed to shift color or emit a sound to notify you of enemy presence.
All four are reversible/changeable to fit your given faction. They reverse, unclick, or allow for a color change of lighting features.
I will definitely be getting my hands on the keyboard and headset and cannot wait to jump in and play. I think this is the first time in months the hype has been exciting enough to bring back my anticipation!