Everything looks great in the prerelease materials. This one has already missed its first deadline. They also don’t seem to have any of the third party certifications they need yet to make their second deadline, so I’m pretty sure they’re going to miss that one too.
Until you can buy it for two day delivery on Amazon, it’s all just marketing.
There was previous discussion about how unrealistic this particular project looked back in August:
Because of the engineering challenges involved in accomplishing what the B1 intends to do, personally I would wait to evaluate the feature set until you can buy it from Amazon.