Cellular chipsets get all the love these days, but it's WiFi that's still the most ubiquitous -- and often the most consistent drain on the battery. Newport Media might have that last problem solved through its new NMC1000 chip. The part is billed as the lowest-power 802.11n wireless system-on-a-chip you'll find, and potentially a big help to smartphones and other devices that lean heavily on a wire-free existence. At just 2.5mm