Awesome. Feel free to hit me up on #emokit on irc.freenode.net. One note: the new headsets may have a different key than the older ones. This has not yet been confirmed, but if it is the case, I'll get it working again regardless.

1) Their API is Windows-only (they have Linux support in beta, though) and is expensive as hell, and 2) The API to get raw access to the EEG data is $750 bare minimum. Silly, considering the consumer and developer headsets are identical, outside of the AES key used.

No real writeup, but as far as what's possible: all data coming from the headset (gyro, EEG, contact quality, and battery meter) is accessible from Emokit (although the latter two are not merged into my branch yet). This means that you can do effectively anything you want with it. Also, you only need the regular headset, although it's compatible with the developer headset as well.