Cambridge Radio Silicon (CSR)'s UniFi-1 is designed for low-power 802.11b/g and a/b/g: CSR is known for Bluetooth chipsets, and their new product might challenge Bluetooth's advantage in cell phones and other devices. CSR says their all-in-one solution doesn't require a host processor, nor (in the slightly larger consumer version of the chip) external flash memory. The chip will cost less than $8 in quantity plus $1 in other parts, which is a few dollars more than Bluetooth per unit. The tiny chipset will be available in samples this year and in production by mid-2005.
Reporting in ComputerWeekly.com indicates that the chipset uses much more power at full speed than a comparable Bluetooth chip, but most small devices can't transmit at anything like the full WLAN speed. The lowest 802.11g OFDM speed (to avoid mixed b/g networks) would be just as appropriate for most handhelds' capabilities.