I compiled a quick and dirty list of smart phone and netbook OS, the list included the OS that I think are relevant. I merged both smart phone and netbooks OSes in the same category, because it seems they can be used on both platforms. Please let me know if you want to include any data worth adding.

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Chrome OS

Started: 2009 Company: Google OS Base: Linux Browser: Webkit based (it is Chrome!) http://en.wikipedia.org/wiki/Google_Chrome_OS