We're still hand-assembling these--it's a lot of work! But if they pass the beta tests, we can have the boards pre-made and just package the other parts in a bag for user assembly (it takes about an evening). Right now we're sourcing the parts to keep the price under $100. Not sure what volume we'll need, but we'll start with a couple hundred kits and see where it goes.
A single BlimpDuino kits will have all the parts to create the following (the bag is the envelope and the little disc is the ground beacon):