Preview at WWDC likely in June, followed by September launch.
Apple Launches Support Account on Twitter With Tips, Tricks, and Customer Service
Many large companies provide customer service on Twitter in 140 characters or less, and it appears that Apple will directly respond to customer tweets as well. The account is currently set to accept Direct Messages, although Apple may choose to disable that option akin to some of its other Twitter accounts.
Apple continues to lack an official company presence on the popular microblogging service, although it does have some Twitter accounts for specific products and services like the App Store, Apple Music, iTunes, and Beats 1. Tim Cook, Phil Schiller, Eddy Cue, and many other executives also have personal accounts.
@ItsZijZ We're here to help! Can you please send us a DM with the details of your issue? Thanks.— Apple Support (@AppleSupport) March 3, 2016