Most businesses, consumers, and developers universally continue to ignore the primary reason that iMessage is a closed platform, rather than an app on every platform as iTunes is: Apple is using device serial numbers for anti-spam, supported by a fully-authenticated hardware and software stack that does not allow user modification. This permits Apple to simply “console ban” any Apple device that spams on iMessage. Th…
This is a great point which I haven't heard before in this age-old debate. But until Apple's dominance starts to wane, there's no chance in hell they will provide iMessage for other platforms unless forced by regulation. If push comes to shove, they can implement heuristics which run texts from non-Apple devices through a harder spam filter. Spam isn't non-existent on the iMessage network, and there already seems to…
And fines are up to 20% of global revenue.