I've had a TON of people asking me about buying them. As I've said to everyone, I don't have many to go around right now, but I'm looking into buying more parts and making a smaller version without the switch to fit in the Aixiz module.
The lavadrive2's are in manufacturing and will be available in about 3 weeks! These can bost from 2 aaa or aa batteries and also work with li-ion batteries to buck or boost if necessary.