No, the Ganglion boards do not communicate together for that kind of linkability. The will communicate with Bluetooth 4.0 (BLE) and computers|tablets|phones can only have one BLE connection. That said, we are using the Simblee radio, which has multiple possibilities for mesh connections.
At the Assembled Ultracortex reward we will send you a complete and working Ultracortex headset. The Print Your Own level, is for people who have their own 3D printer, or have access to their own. We will send you all of the non 3D-printed components, like electrodes, cables, some plastic pieces that we will have injection-molded, etc.
The most affordable way for you to get access to your brainwaves is to back us at the $99 Ganglion level. At that level, all you will need to get is the electrodes and some EEG paste. For a more complete system, any level of the Ultracortex will get you an easily deployable, dry sensor system for gazing into, and manipulating the world with your brainwaves.
You can do just about anything with the Ganglion data that you can do with other EEG (brain), EMG (muscle), or ECG (heart) data. For example, a growing number of people are getting into neurofeedback for therapy and wellness. Our 4 channel system is ideal for this practice.