An industry group of wireless networking companies said Tuesday it will <A HREF="http://www.cnn.com/2006/TECH/internet/08/29/wifi.alliance.ap/index.html">start certifying next-generation routers</A> and network cards in 2007, a year before official standards are expected. Frank Hanzlik, managing director of the Wi-Fi Alliance, said that without a certification program, the market could have been fragmented by the growing number and variety of pre-standard "Draft N" or "Pre-N" products claiming faster speeds and greater range. The products take their names from the 802.11n standard.