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Nothing Phone builds a blue bubble iMessage bridge while Google and Apple fight over RCS
(www.androidcentral.com)
This is a most excellent place for technology news and articles.
It's not just about the color of the bubble. If you go on an outing with a group of iPhone users, there's a high chance they'll create a group chat with and without you, because the group chat with you won't let them send HQ photos. Even if they aren't trying to be exclusionary, someone will inevitably forget to send messages to both group chats. iMessage incentivizes situations like this which socially punishes Android users.