For more and more people, text messaging and SMS have replaced IM and e-mail, especially if you work at an office where IM and e-mail are restricted or monitored. If your boss has gotten on your case lately for spending more time typing on your phone than typing on your computer, SMSOfficer may be able to help. The service works with Microsoft Outlook 2007 and allows you to send SMS messages to your friends' phones directly from Outlook, so you can keep your phone tucked away and save your coworkers from having to hear your phone beep every ten minutes.
I occasionally get text messages from my coworkers about meetings and so on, and my direct reports know that sending me a text message when they'll be late is much better in my mind than calling me first thing in the morning to tell me. If your office has embraced the text message as a way to get in touch with people when they're away from their desks, SMSOfficer may be able to help you do more than just hide your texting habits from your boss.