In WLANs, worldwide revenue was flat sequentially in Q4 at $571 million, but grew 16% compared to Q4 of 2008. For the full year, worldwide Wi-Fi network equipment revenue was down 6% compared to 2008.

WLAN growth in 2010 will be driven by increasing mobility in the enterprise, fixed-mobile convergence and wired/wireless LAN convergence. Cisco continues to lead the WLAN equipment market with 46% in both 2009 and Q4, followed by Aruba Networks, according to Infonetics.

in Network World's LANs & WANs section.