From Koolu's "Who We Are" page:
"Jon "maddog" Hall - CTO and Ambassador
Jon "maddog" Hall is CTO and ambassador to the world for Koolu."
It makes sense that he would openly support it, if he's the CTO of the company!
From reading the Zonbu "Learn > OS" page, there's no mention of Linux. If you look at the
"Learn > Applications" page and you know that Evolution is an Outlook replacement, you can
infer that the OS is Linux.
It appears that the Zonbu has higher-spec graphic hardware than the Koolu - 2048 x 1536 @ 75Hz
(Zonbu) vs 1920 x 1440 (Koolu).
The Koolu has a 500MHz AMD Geode LX 800, and the Zonbu has an "Intel-compatible ultra-low
power CPU" (no specs other than that).
Take Care,
David Baldock