Very cool :) What's the battery life like? I gather input is bluetooth and the side button, output is speaker (buzzer?), display and vibration? If this is th

Very cool :) What's the battery life like? I gather input is bluetooth and the side button, output is speaker (buzzer?), display and vibration? If this is the case then I'm sure a few more buttons would be useful, or possibly a basic touchscreen - something along the lines of splitting the screen into four reactive areas, obv not pixel-precision touchscreen as that would be silly. Great product at a great price - best of luck with this!