Here is another combo USB gadget from the  guys over at Brando the USB Multi-Touch Smart Pad.

The USB Multi-Touch Smart Pad is two gadgets in one, as well as a multi-touch touchpad, it also doubles up as a numeric keypad, and you can switch between the two modes with one button.

Here are the specifications.

• Space-saving, centrally positioned Touch Pad with Two/Three Finger Multi Function
• Smart touchpad with an integrated number pad
• Touchpad and Number pad mode switch button and LED
• Slim and compact design
• Support Window XP/Vista
• Dimension: 80 x 104 x 15mm (approx.)
• Weight: 103g

The USB Multi-Touch Smart Pad is available for $40 from Brando.