There are some threads on amigaworld from approximately October 2011.
As indicated by takemehomegrandma, not much is known. There has been some rumours and speculation. Two people confirmed that there is a working system, but more work is required for drivers, etc.
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redfox
Since Netbooks are *all about SoC's*, the Key Information would be the CPU.
And in the PPC architecture (OS4 isn't about to change CPU architecture, right?), a "netbook" (that is *already existing*) could only mean the MPC5121e CPU, and the only Netbook kind of platform built on this, is the LimePC. It does come under different brands though, like that South African thing, or cherrypal (but that was a NetTop/Cloud Computer), but it's still is a LimePC though (again: Search MorphZone.org for "LimePC" for more info)...