How to Find iMessage Users & Contacts from iPhone or Mac OS X
Wondering if a particular contact or person is using iMessage? You can find that out rather easily from an iPhone, iPad, or Mac.
iMessage is a great addition to iOS and Mac OS X that lets you send unlimited text messages, pictures, videos, documents, and even files, between other iMessage users. Though you probably know at least a few people who are using iMessages, chances are good that more of your contacts have set it up and you just didn’t know about it yet. The good news is that iMessage users are easy to find, and as long as they have it configured properly on their iPhone, iPad, iPod, or Mac, you’ll be able to find who is using the service and who can receive things sent through the iMessage protocol.