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From your link, emphasis mine, "The team prototyped the idea using an mbed-enabled NXP LPC1768 prototyping board, and then transitioned to a full custom design using the mbed HDK for NXP LPC11U24 board based on an ARM Cortex-M0+."

So the hardware may support hacking, but their software isn't designed to be hacked (e.g., requiring licenses).

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I think it is important that the hardware is based on a big opensource platform – it means you are never going to have an expensive paperweight. With the software it is transitioning to use standard programming languages – so you get the full hackability of those later on. If there was sufficient demand from users then the software could be open sourced – definitely intend for people to be able to create their own programs and share them.

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