Beeper Mini made Android users blue bubbles. Apple shut it down after only a few days.
Apple responds to the Beeper iMessage saga: ‘We took steps to protect our users’::Beeper, like Sunbird and Texts, sought to find a way to bring iMessage to Android users. Its app, Beeper Mini, worked well. But a few days after it launched, Apple took steps to shut it down.
They protected their users because if they didn't they wouldn't have users. I have asked plenty of friends why they don't use Android and their response is "it doesn't have iMessage" and that if it did they would switch.
Nothing. iPhone users are just happily married to it. I have family/friends that would switch to a cheaper non-iPhone that performs just as well if they could keep using iMessage.