Over the past few weeks, I have been making a concerted effort to master the operation of my iPhone using a Bluetooth keyboard, my goal being to have to memorize as few VoiceOver keyboard shortcuts as possible<smile> while improving the speed and efficiency with which I write longer messages on the iPhone. Working with the keyboard using a variety of apps (such as Messages and Mail), I discovered an interesting peculiarity with the Messages app. If I wanted my texts to be divided up into paragraphs, I could not simply press the Enter key, for doing so would cause the message to be sent instead of inserting a Newline character. This behavior does not happen when writing email messages or taking notes in something like the Notes or Drafts app. I attempted to gain a better understanding of this problem by contacting Apple's Accessibility Support. Alas, greater understanding was not forthcoming from the person on the other end of the line.
As it turns out, when typing in the Messages app with a Bluetooth keyboard, you can generate a Newline character by pressing CTRL+ENTER. In fact, CTRL+ENTER works equally well in the other apps I have tried—including Mail. It causes me more than a little frustration to find that Apple Technical Support was not able to enlighten me about this even though this particular issue is not one related to VoiceOver or accessibility. Nevertheless, I pass this along for anyone else who cares to gain a better understanding of how to use a keyboard with iOS.