While iMessage has its own native Mac app, you also have the ability to quickly send an iMessage via the Contacts app if you're running OS X Mountain Lion. Whether you're looking for a specific number or not done looking through your contacts just yet, here's the easiest way to get a message sent without interrupting what you're doing within the Contacts app.
If you use iMessage frequently for both work and personal, there may come times when you don't want to be disturbed by messages from people you don't know. iMessage gives you the ability to disable alerts from people that aren't in your Contacts app. You'll still receive the messages, you just won't receive audible alerts for messages from people you don't know.
Siri isn't just another voice control system, it remembers context and it can understand relationships. That means, for example, you can tell Siri to call your wife's iPhone, and Siri will know who that is and which phone number to dial. Not only that, Siri can send iMessages or SMS, and even email any of your friends, family, or co-workers. No matter how you like to communicate, Siri makes it incredibly easy to stay in touch.
If you've got an iPhone, iPad, or iPod touch running iOS 5 or higher or a Mac running OS X Mountain Lion, you can use iMessage to send free text, photo, and video messages to anyone else in the world as long as they're using an iMessage capable device as well. Read receipts allow your contact to see whether or not you've viewed a message yet. While some people may consider read receipts to be a bit stalker-ish, others may find them useful for work and business situations.
If you've got an iPhone, iPod touch, or iPad running iOS 5 or higher you've got iMessage, Apple's free MMS-like service that works with any other iOS device, and Mac running OS X Mountain Lion, to let you easily send photos without paying your carrier for a special messaging plan (data rates will still apply if you aren't on Wi-Fi). iMessage is built right into the same Messages app and Share Sheet that sends SMS and MMS to your non-iPhone using friends, so you don't have to do anything extra to use it. Just pick your photos and send them!
iMessage is great way to send and receive text and multimedia images with any iPhone, iPod touch, or iPad running iOS 5 or higher, as well as any Mac running OS X Mountain Lion. Along with receiving iMessages at your phone number on the iPhone, you can receive iMessages at your Apple ID email address on iOS and OS X as well. But what if you've got more than one email address and you want to be able to use all of them with iMessages?
If you need to quickly send contact information from your iPhone, iPad, or iPod touch, it's easy to do with iMessage or even good, old-fashioned SMS. As long as you have the information listed in your iOS Contacts app, you're always only a few taps away from sharing a vCard file (vcf) containing phone numbers, email, street addresses, and much more.
If you've got an iPhone, iPod touch, or iPad running iOS 5 or higher, or a Mac running OS X Mountain Lion, you've got iMessage, Apple's free MMS-like service. iMessage works with other iOS devices and Macs to let you easily send videos without paying your carrier for a special messaging plan (data rates will still apply if you aren't on Wi-Fi). iMessage is built right into the same Messages app and Share Sheet that sends SMS and MMS to your non-iPhone using friends, so you don't have to do anything extra to use it. Just pick your video and send!
By default, iMessage and SMS messages will show previews and alerts on the Lock screen and Home screen of your iPhone, and iMessage previews and alerts on your iPad and iPhone. If you'd rather keep your messages -- be they big business dealings or super secret sextings, we don't judge! -- away from prying eyes, and give yourself some privacy, it's easy to do.