Last night at the second meetup KC and Warren showed off the Herebot and explained how an H bridge is used to run motors forwards and backwards, by mapping a single range of input voltages to four relays.
Warren showed off a custom Android app made with Apache Cordova, called Meme Responder. His next effort will be a choose your own adventure, old-school DnD, party game mashup. Watch this space.
Adam promised to show videos of flying through the Canyon at a future date, and bring in his quadcopter and custom backpack.