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Beeper vs Apple battle intensifies: Lawmakers demand DOJ investigation - Android Authority
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
You can argue that they're unfairly using monopoly power. Same reason why MS was forced to allow windows to switch browsers.
Monopoly on what?
How would you argue that? There’s plenty of other options and iMessage falls back to MMS, which all phones are capable of.