Well that was quick! Thank you Colorado Tech Shop! :)

Luis personally brought me the first article of their build to check for any defects. Looking good!

This is how they look when freed from the panel:

So I build one up to test whether everything works--no problems! Here's the first boot of a production #LiFePO4wered/Pi:

Hurray! Luis said he'll build the rest either tomorrow or early next week.

So what's left? Some minor improvements to the firmware:

• An I2C variable where you can customize the after-shutdown delay before the power is turned off. This can allow the system to work correctly through reboot even if the GPIO UART is disabled on the Pi.
• A calibration value for the low power oscillator that can be read by the Pi and used to set reasonably accurate wakeup times based on the actual oscillator frequency.

And on the host software:

• A system that will use the API version value to provide access to the correct set of I2C registers for that version. This will make it so the few people with early prototypes with 1K of flash can continue to use their units, and will make it possible to add features in the future without breaking things for existing customers.
• Add access to the new firmware features described above.

And of course: documentation. This thing has quite a lot of features and I think it's important that people can actually figure out how to use them. I'm not going to keep people from being able to buy them until the documentation is perfect, but there needs to be a minimum to prevent frustration. There's never a second chance to make a good first impression. :)