TABLE OF CONTENTS Today, technology is providing consumer and business users with an increasing array of devices and software applications that can be used to organize, entertain, and inform. Because these technology solutions have become more ubiquitous, flexible, and capable, it is reasonable to ask if the user interface (UI) that allows the user to take advantage of the technology has kept pace. A couple of scenarios may help illustrate this.
In the first scenario, let us suppose that you are riding the bus home from work and, just as Murphy's Law might have predicted, you get stuck in traffic and will not be home until much later than you expected. You will, in fact, be so late that you are going to miss your favorite TV show. You did not set it up to record because you thought you would be home in plenty of time. No one is home to record it for you, so you now wish you had a way to record the show, such as calling your digital video recorder (DVR) from your cell phone to set up the recording.
Another scenario is that your best friend just had a big argument with her roommate and you want to call her to give her some support. She has moved to another place and emailed you her new phone number. You know you changed the phone number when you got a message from her, but you cannot remember...
