<p>TOKYO -- Nintendo's Game Boy Advance hand-held machine will work as a videophone with an attachment that comes with a digital camera, earphone and microphone and is expected to go on sale in December only in Japan.</p>
<p>The Campho Advance from Kyoto-based Digital Act, which makes mobile and Internet equipment, slips into the top of the Game Boy Advance just like any video-game cassette.</p>
