It's not hard to imagine why people would want a motherboard as small as VIA's PX10000: its low power requirements (the guys at Mini-ITX.com couldn't get it to draw more than 16 Watts under full load) and miniscule size (less than 4 inches long) make it perfect for really small enclosures.

ENGADGET: VIA EPIA PX10000 Pico-ITX motherboard gets reviewed