In this podcast, Michael Hansen gives us a demonstration of the new alt text feature in Twitter's iOS app.

With Twitter's alt text feature, users can now include alternative text with images they post--so visually impaired readers can access them and know what is in the picture. In addition, VoiceOver also automatically reads out alt text in tweets where it is included; users need not change any settings to access alt text.

Twitter is a free download from the App Store.