Apple iBook G4. The one drawback of this cute, light, notebook-like computer is that its bottom gets very hot in use. Lap-burning hot, in fact. The solution I found to this problem turns out to be a real enhancement. It provides the necessary ventilation under the iBook, but it does more. Unfolded, it provides a wide, stiff surface to hold the computer when I’m sitting cross-legged. Were I a mouse-user, there’d be space to move the mouse. But I use it mostly in its folded configurations. It’s cleverly designed to also serve as an adjustable tilt-stand, and still be wide enough to hold the iBook and fit my lap. There’s an advantage to being able to tilt my keyboard while I’m working. I sometimes use the LapDesk at my desk, or at cafe tables for the ergonomic value. The LapDesk is light, stiff, and compact, so that if fits nicely into my laptop bag, providing an extra layer of protection for the iBook in travel.