Along with across-the-board updates to its Mac desktop computers, Apple today quietly introduced a new version of its Airport Extreme Base Station, featuring a new dual-band Wi-Fi mode that improves wireless performance on recent computers that share networks with devices such as the iPhone and iPod touch. The new dual-band support lets 802.11b/g devices, such as older computers, the iPhone, and the iPod touch, connect using the 2.4GHz wireless…
