One of the compromises of portable computing is screen size. The most portable laptops sport 13- to 15-inch LCD panels that can make us squint our eyes to take in all we try to fill them with. Move to a larger screen size and suddenly a very comfortable lightweight portable becomes an uneasy luggable.
It doesn't need to be that way. If you happen to have a couple of spare displays (LCD or CRT) and Matrox Graphics' DualHead2Go module, you can snatch the video from your portable's external monitor output and create panoramas as large as 2560 x 1024. With all this visual real estate you can create expansive work screens or partitioned space for separate tasks.