Twitter is rolling out a new audio tweet feature for iOS users

Remember when 140 was an important number for Twitter users? Well, that number is making a comeback. This time it's not the maximum number of characters in a tweet, but the duration of how long an 'audio tweet' can be.Twitter has announced – via Twitter of course – that audio clips of up to 140 seconds in duration can be recorded and attached to tweets being posted to the platform. This new way of tweeting is currently rolling out only to iOS users, starting with a select few and fol