I thought the same until I looked into it closely. I had an idea for a simple, slow charger (overnight or all day kind of thing) but these are not the best for long-life batteries. The good chargers are pretty sophisticated, and readily available from various web sources. I doubt we could make such a thing for as little cost as buying them, even as a kit.
I kept hoping that the creative juices of the Bottlehead community would come up with something - that kind of thing takes care of about half the product ideas we have, and it's always a thrill to see what people come up with. That hasn't happened for this product yet. If that situation persists, and more Quickies get out in the field, I will likely look at it again.
How about a solar charger? Maybe a trickle charger that can be connected all the time, since it's floating and won't have to be disconnected to detach from power line noise.