New Version: 2015.06.17

[debrouxl]

Oh, I meant that many bonus points would be awarded if HP made their reference computer-side implementation of the communication layer open source, under a permissive license.
For instance, maintained in a Github repository that people can contribute to, like libti* and libhpcalcs are.

The communication specs are no secret. At the time of this writing, the most advanced and reliable third-party implementation (and therefore documentation) of these protocols remains libhpcalcs.