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Apple won’t be forced to open up iMessage by EU
(www.theverge.com)
This is a most excellent place for technology news and articles.
iMessage is the same though... It only falls back to sms when required (like everything else) and people hate it when it does.
RCS has with all the major reasons that iMessage became preferred, and Apple is adding RCS support to iOS. It'll take some time, but I do think there'll be a cultural shift.