When apple didn't include flash in ios devices
It's Software. Apple believes the poor performance, buggy nature and terrible battery life make it worthless on mobile platforms. Adobe just killed mobile Flash, so apparently they agree
Not exactly. While technically feasible, the restrictions Apple puts on app store submissions makes it impossible for a developer to include it in their app. Now that said there are a few browsers which get around these restrictions by running flash on a remote server rather than the device itself.