I can appreciate the fact that at times you really need an external keyboard. If all you are doing on your notebook while you are on the road is surfing the Web you may not need one. However, if you are working on the road an external keyboard can make a big difference in how quickly you can type long documents.
Econo-Keys has announced a new portable keyboard called the EK-76-TP that measures in at 8.91-inches x 3.54-inches x 0.38-inch and is compatible with Windows and Linux. The keyboard has 72 keys, 12 of which are function keys.