After skimming TFA, I came here wondering the same thing... what is it and how is it different than Android, Linux or other alternatives. I realize marketing wr

After skimming TFA, I came here wondering the same thing... what is it and how is it different than Android, Linux or other alternatives. I realize marketing writers think they must always lead with the usual vaguely positive puffery but it has no concrete meaning and contains no actionable information.