For the paranoid twitter enthusiasts - this is the project for you. Instead of dedicating a browser page and possibly a PC just for twitter, instead make your own display using simple Arduino-based hardware. To build this project would take less than an hour, and then you can get back to work with the display in the corner of your eye:
To reproduce this, all you need is an Ethernet-enabled Arduino board, an LCD module and a housing. At Freetronics we've got that covered with our EtherTen - the Arduino-Uno compatible with onboard Ethernet, microSD socket and optional PoE:
Then slot in our LCD Keypad shield, and you're set:
So to get started, find the instructions and Arduino sketch here.