Try now. Mac OS X is based off BSD and contributes little back (and what it contributes is patent-encumbered enough to be unusable). And that's only a high-profile example which is obvious: there are tons of examples we'll never hear about because we'll never see the code.
Try now. Mac OS X is based off BSD and contributes little back (and what it contributes is patent-encumbered enough to be unusable). And that's only a high-profile example which is obvious: there are tons of examples we'll never hear about because we'll never see the code.