In writing, changing one letter can sometimes make all the difference. Such is also the case in the tech world, as when wireless networking went from G to N. The Wi-Fi standard adopted in 2003, 802.11g, was fine for your laptop or smart phone, but it was a little poky for businesses. The 802.11n standard offers more speed and capacity. It's been around for more than two years, but it got a big boost in September when the standard-setting trade