Android is the "least open of open source mobile platforms," screams the misleading Ars Technica headline about a study by some market research firm.
When someone says least open, I guess you have ask compared to what? Because in this case, five of the eight mobile platforms aren't mobile phone platforms at all. Two are the browser projects for Webkit and Firefox. One is Linux. Eclipse and Qt are development platforms for writing software.
The only mobile phone platforms here besides Android are MeeGo, the Linux-derived OS that seems to run only on modified Nokia N900 phones, and Symbian, which is no longer open at all. Hmm.
Maybe a better headline would be: Android the only open phone platform that you can actually get on a phone.