Leading 802.11g chipmaker Broadcom demoes GPRS/Wi-Fi, GRPS/EDGE/W-CDMA, and Voice over WLAN (VoWLAN) technologies at the 3GSM World Congress next week: Broadcom is trying to extend its edge in data by offering chipsets that combine several standards and features into a single package. Sony Ericsson will release a PC Card with GPRS and Wi-Fi using Broadcom's technology. And the GPRS/EDGE/W-CDMA chips will be used as the basis of new cards from several companies that will support the 1800 MHz 3G spectrum used in the U.S. for W-CDMA, such as the service AT&T Wireless may or may not offer this year.