We've experienced Generation X and Generation Y. Now Generation Wi-Fi is making its presence known in many schools. Today's students are connected with each other and the world, increasingly through personally owned communication technologies. Cell phones that send text messages and photographs, handheld personal digital assistants that can beam files, and laptop computers that connect to networks wirelessly are now found in students' backpacks right along with calculators and three-ring notebooks. Stories of students using these devices to cheat on tests, disrupt class or hack school networks are common, and the knee-jerk reaction by many schools is simply to ban them. Yet some schools permit cell phones, encourage student use of personal digital assistants and are working toward creating a 1:1 laptop computer-to-student ratio. This article explains exactly what each of these devices are, their capabilities, and security measures school districts should adopt to to ensure they are used productively. It also asks if educators should control, ban or encourage their use.