The Samsung Continuum's user interface is definitely familiar to Android users. For new users, it's extremely easy to pick up and very user friendly. TouchWiz UI 3.0 also adds to the easy to user interface and, like the other Samsung Galaxy S phones, has an application screen very much akin to the iOS screen on the Apple iPhone. The Samsung Continuum, in addition to the virtual keyboard comes loaded with Swype. For users unfamiliar with Swype, it is a keyboard application that allows you to type by swiping from letter to letter. It's extremely handy and fairly accurate when it comes to selecting the word you want to type.
The unique feature to the Samsung Continuum is the 1.8 inch Super AMOLED ticker screen. Wrap your hand around the phone and give it a slight squeeze and the ticker will turn on. Once the ticker turns on, you can swipe left and right to view the various ticker updates that appear. Some items you can view from the ticker are Twitter updates, RSS feeds, missed calls, time and weather. In addition, while you're using the phone, the ticker stays lit, allowing you to view the time, weather and any text messages or call messages that occur while you're busy using the phone. The ticker is also touch sensitive, meaning you can interact with the ticker screen. Simply click on the update and your main display will switch to the application.
Overall the Samsung Continuum has got an excellent user interface and the unique ticker is a great addition to an already great Android user interface. One thing to note is that the ticker currently does not work with other third party applications.