Master the features of iOS 9's Messages app.
Sony launches a new PlayStation Messages app for iOS and Android, making it easier to smack-talk your buddies on the go.
Mac TipsUse this powerful built-in functionality of OS X to view others' screens and even help them use their Macs.
It tooks its sweet time, but Apple now lets you deregister your number from iMessage - even if you no longer have an iPhone.
Google is looking to bring its Chrome browser up to speed with the Android OS by building in push notifications.
Google's added multiple account support, profile pictures and infinite scrolling to its iOS app, not to mention a nice new look.
Messages Beta users will have to upgrade to Mac OS X Mountain Lion if they wish to continue using chat client.