If you're always wanting to watch a certain twitter feed or two, why not make a separate unit just for that purpose? Doing so has been demonstrated by Varut Rintanalert who uses an Ethernet-enabled Arduino board and an LCD module to do just that. It's programmed to monitor four feeds, however with modification you can change the feeds, or also have your Arduino react when a certain term or hashtag appears. It's a simple and fun project that shows how easy it is to work with Arduino and the Internet.
If you need an LCD module for your next Arduino project - save time and move forward with the Freetronics LCD & Keypad shield. This convenient shield contains a bright 16x2 character LCD and five buttons that can be read from only one analogue input pin: