To add more generic info, as it is shown in the video we have quite a few prototypes and we are now working on the final design of each piece of hardware (including the control board).
Still very alpha, specs currently are STM32F446RE (ARM M4), ESP8266 (WiFi, for control from a computer, phone...) and an accelerometer on-board. 9 channel servo control with current sensing, JTAG/USB for programming, i2c and serial interface for talking to it from an arduino, raspberry pi or other microcontroller. We're not expecting to have much GPIO free, and as I said, the firmware it's running is kinda complex, so we're not expecting most people to change it.
How much weight does the frame support? Does the weight need to be centrally located? I'm thinking this would be very nice with one of those small touchscreen displays attached to it.
It's fine with a reasonable amount of weight - I'd have to ask Sandy how much weight Marty can take before he physically can't move, but a touchscreen should be fine, and won't disrupt his walking ability much. Of course you could re-plan his walking with the weight taken into account, but that's quite complex. We'll probably have standard mounting holes on top of his head, so should be a nice and easy hack :D
How many degrees of side-to-side motion can the frame take before it falls down? I'm thinking of getting two of these, putting a touchscreen on each one, and having them play joust. The objective would be to touch a dot displayed on the other players touchscreen. The things I come up with...
Hey, just to follow up, we've added a graphic to our indiegogo page with a render of the control board that's currently in development, if you want an idea of what it'll probably look like.
What would you like to know in particular?
Edit:
To add more generic info, as it is shown in the video we have quite a few prototypes and we are now working on the final design of each piece of hardware (including the control board).