I wonder if there is business in buying those cameras in bulk, flash them with thingio and resell them as "open" camera. Not sure if it's even legal. I guess flashing the camera probably void the warranty and the margin would be razor thin anyway.
Also, because many of these brands are no-name, you get the inverse volume discounts — you can get 1 camera for less per-unit cost compared to buying 2 or more.
Starting a business may make more sense if you're willing to go directly to the manufacturer, and have the manufacturer flash the firmware directly at the factory. Even then, why would people buy from you at $30 when they can buy an encumbered version for $15 and follow a few instructions?