Mark Hachman reports in eWeek that the long-discussed IEEE 802.11i specification may be approved today, "adding a needed layer of security to the Wi-Fi standard... If the specification is approved, most manufacturers will be able to push out firmware upgrades in a matter of weeks, if not sooner... Actual 802.11i hardware-based support will probably be baked into the next revision of chips, the sources said." The IEEE 802.11 Task Group will announce their decision here.
UPDATE: 802.11i approved as predicted.