Em www.skybox.com/blog/introducing-skybox-for-good, encontramos:
*In this beta phase of the program, we will select a small group of
organizations and acquire the imagery they need to accelerate their work.
The images collected for these partners are being made available publicly,
under a
Oi Robian,
devagarzinho,
parece que o CC-BY nâo é compativel con a ODbL.
veja aqui:
https://lists.openstreetmap.org/pipermail/talk/2014-October/071290.html
é aqui:
https://lists.openstreetmap.org/pipermail/talk/2014-October/071293.html
Eu acho que temos que esperar a resposta do LWG. ;-)