In April 2013, Google will introduce a new, streamlined Gmail compose experience with many features, which soon everyone will be able to benefit from, including:
To help make the most of this new feature, DoIT Training is holding several quick training sessions on the new compose experience. Stop by and learn about this great feature.
According to Google, Gmail's new message compose feature will become the default compose experience for everyone automatically on April 16. For two weeks, users will have the option to opt out and switch back to the old compose experience. New compose will permanently be enabled on April 30, 2013, at which time old compose will no longer be an option.
For more information, see the Google Apps What's New website and Release Calendar.
Update 8/16/2013: August 27th, the old compose experience will be permanently replaced by the new compose experience. If you prefer having a larger space to compose messages, new compose offers a variety of window options. Learn more about these options.