For anyone who is interested in making an iMessage proxy and has time to spend: There is a legitimate way to interact with the iMessage system with a standard protocol. It requires you to have a host iPhone (no jailbreaking needed). What you need to have is a Bluetooth adapter with MAP (Message Access Profile) support. Your iPhone will treat all messages from the MAP protocol as if they are from the Messages app. Thi…
The only problem is that any messages that the iPhone received while the middleman was out of range won’t get to your PC, but this’d still be extremely useful for quick replies. I wonder if the iPhone will accept photos over MAP....
That is not a problem. MAP is sort of like the IMAP protocol. You can ask the phone to give you older messages and the iPhone does indeed support that as well.
Moreover, with this scheme, you will likely have to keep the donor host iPhone and the middleman at home and have them plugged in 24/7. So then your middleman doesn’t have to be extremely clever, although it wouldn’t hurt if it was.