Before Mango, voice commands were supported with Windows Phone 7, but Mango lets you compose a text message or instant message with its voice-to-text. As with any feature that is supposed to recognize voice and different dialects, the accuracy is inconsistent. Punctuation, capitalization, and formatting do not work too well. Mango does introduce the ability to read incoming messages. You can choose how you want the message read to you by modifying the Settings.