The Dragon Dictation iPhone application from Nuance Communications is an outstanding tool for anyone wanting to dictate e-mail or text messages on the iPhone.  Recording with Dragon Dictation is easy. Launch the app, tap the record button, and start talking clearly and naturally. You do not need to talk like a robot.  To add punctuation, you say “question mark,” “period,”or “new paragraph.” You can start and stop with a tap, make changes and drop in text as needed.

I agree with Nuance that the application is 4 to 5 times faster than using the iPhone keyboard.  I spent a half hour dictating and only had 4 errors.  These were acronyms and abbreviations.  Fixing errors is easy within the app.  The dictated messages can be sent via e-mail or SMS from within the app.  The user can copy dictated text to the clipboard as well.

You need a Wi-Fi or 3G connection for the application to work. The recording is sent to Nuance for dictation.  This may be a privacy issue for some folks.  If that bothers you, don’t use the application for sensitive communications.  Nuance uses the server to calibrate dictation accuracy.

You can optionally upload the names from your address book to enhance accuracy.

You can dictate about 30 seconds of speech at a time.. And the app won’t translate as accurately in a noisy environment

The app does lack an autosave feature. You will lose your work if you exit the app to take a call before saving to your clipboard.  All in all, the app is an outstanding find for low vision users.