Offer "green" desktop systems
Offer "green" desktops by doing away with all Optiplex and Dimension case designs, revamp a laptop chassis into a smaller footprint desktop ... replace 3.5" drives with laptop 2.5" drives, and scale down 300+ watt power supplies to the Optiplex 65w capacities of yester-year.
Take an existing laptop design ... remove the LCD and keyboard to reduce the cost. Now you've got something more like the Mac Mini. You'll have something much smaller so that you can place under a desktop telephone ... you'll have something smaller so you won't be able to hear it ... and you'll have something more energy efficient that will help the environment.
Status Update: Please see bill_b's comment for further details. Thanks for posting!