The world may not be ready for this, but Taito is bringing a USB-powered cleaner to desktops in the form of R2-D2.  Powerful enough to pick up little bits of dirt, dust, and small paper from your desk, but not much else, the nearly 4-inch droid may be only slight less practical than the USB humidifier.  Available for pre-order from NCSX, the retail price is about $21.  The R2-D2 cleaner is set to ship in August.

Available for pre-order from NCSX.  Retail price $20.90

Via Ubergizmo