Apple continues to not give any care whatsoever to anything outside their walled garden. For the longest time you couldn't even preview songs on iTunes store without having iTunes. Want to watch their biggest WWDC live? Had to use Safari until last year. Obviously iMessage and FaceTime are complete no-gos outside their walled garden too.
This is how they keep people in. They have to close down their walls as tightly as possible, to force people in. And once you're in, they make it as hard as possible to leave.
This is how they keep people in. They have to close down their walls as tightly as possible, to force people in. And once you're in, they make it as hard as possible to leave.