Duke University researchers have developed a prototype of the PhonePoint Pen , a telephone that can “write” words in the air, like a pen. True, a mobile phone doesn’t look like a pen anyway, no matter how cool it is, but it’s easy to write a small message with it, especially for those who never got the hang of typing SMS. A phone with a new application will allow you to write without worrying about getting into tiny keys with precision. As its creators promise, the application will be available in the near future.