Figure 1: My tiny, tiny, tiny homemade tablet with NetBSD running on it.
I’ve managed to run NetBSD on my Pi2 and Odroid C1 SoC/SBC computers. Next on the wish list is the XU4 or N2, whichever comes first.
Note that NetBSD is a trademark of the NetBSD foundation, and this author and site have no affiliation with them, other than we use NetBSD.