While I salute Microsoft's decision to open up most of Xbox Live to non-paying customers, I have to admit that the $50 subscription fee is a bit steep for those who simply want to engage in deathmatch contests with friends over the Internet. Enter XLink Kai, a network-tunneling service that essentially lets you set up System Link-type deathmatch sessions across the Internet, a feature that normally requires Xbox Live. So skip out on the monthly or yearly fees and start fragging. The service works with Xbox, Sony PlayStation 2, and Nintendo GameCube.