I want to know if I design something using beaglebone, a cape and a Linux distribution,
would it be possible to sell that product commercially? would it consider to be open source? And what is the license and restrictions?
Is there any reference for Linux ported for beaglebone license ? Do they include any 3rd party packages?
Well, you have to honor the license of any package you put in your "product".
Do a license review of that first, then you'll know what you can and can not do.
The Open Compute Project has established two new hardware licenses, sharing the details and rationale at http://www.opencompute.org/blog/request-for-comment-ocp-hardware-license-agreement/
I'd like to recommend the BeagleBoard Foundation consider adopting the OCP Hardware License Permissive, which is similar to the Apache 2.0 license applied to important projects like Apache web server, Hadoop, Mesos, and Open Office.
Has this been considered at all? Is there interest or openness to discussing?