thedopefish´has ported xBill ( http://xbill.org/ ) to the DS.

Ever get the feeling that nothing is going right? You’re a sysadmin, and someone’s trying to destroy your computers. The little people running around the screen are trying to infect your computers with Wingdows [TM], a virus cleverly designed to resemble a popular operating system. Additionally, some computers are connected with network cables. When one computer on a network becomes infected, a spark will be sent down the cable, and will infect the computer on the other end when it reaches there.

Leave feedback here: http://forum.gbadev.org/viewtopic.php?t=14983

Illustration-Screenshot donated by http://www.dev-fr.org

http://vespenegas.com/dsbill.html