I did not know that. I thought it was a locked down messaging network on Apple devices could get on (plus some SMS). Does that mean another service speaking XMP

I did not know that. I thought it was a locked down messaging network on Apple devices could get on (plus some SMS). Does that mean another service speaking XMPP can exchange messages with an iMessage user? Edit: According to Wikipedia, it's based on APNs. https://en.wikipedia.org/wiki/IMessage https://en.wikipedia.org/wiki/IMessage