A cross-platform (this isn't just an iOS, Android thing, as there are plenty of other mobile OS's) protocol to replace/advance SMS is only a good thing but it needs to be an open source standard (including features like E2E) that doesn't rely on a single network (ie - Google's) or company.
RCS could be a good starting point but it's going to take all vendors and networks to sit down and that's unlikely to happen unfortunately.
I would rather Apple rollout iMessage for android.
Would there be enough uptick for it to be popular and worth Apple's dev time?
Other than iMessage-centric markets (which is small in comparison), the rest of the planet has swapped to third-party services for messaging.
I think Apple missed the boat about a decade ago; if they launched a cross-platform app then, like WhatsApp did (offered iOS, Android, Symbian OS and BlackBerry OS variants), it probably would be a global messaging app.
Always funny when Europeans talk about how we're so behind using iMessage still, while they love WhatsApp. I'll pass on that. I don't want Meta and Facebook collecting who I chat with, when, where, and more. I don't need to tie myself to a specific app.
We don't think you're "behind", we just use others tools to get the job done because iMessage doesn't. If iMessage allowed us to communicate with non-Apple devices, we would use that but it doesn't; it's that simple.
The difference is that WhatsApp requires an internet (or data) connection. Those that turn off data won't be able to use WhatsApp. That's where iMessage becomes elegant, because it falls back to SMS to ensure message delivery. Does RCS, or are users stuck with an unsent message?
RCS does/should fallback to SMS/MMS same as iMessage but re. data, the majority of mobile users have access to data, be it mobile data through their network or WiFi etc, most of the time so it's not particularly a big deal.
Who the hell texts people anymore??
I’m serious, who doesn’t just use Signal, WhatsApp, FB Messenger, Telegram, WeChat or any of the hundreds of SMS replacement apps?
I imagine the plan is to create a "default" messaging system that has (some) of the features that other messaging apps offer. As you say, majority of users will use other messaging apps but having a better "SMS" isn't a bad thing.