Apple updated the Airport Express today:
Apple today updated its AirPort Express mobile base station with 802.11n to deliver up to five times the performance and twice the range of the previous model*. Priced at just $99, AirPort Express is the worlds smallest 802.11n-based mobile base station. It can be plugged directly into the wall for wireless Internet connectivity and USB printing at home or easily brought on the road for wireless freedom wherever there is an Internet connection. AirPort Express features AirTunes, which works seamlessly with iTunes to give users a simple and inexpensive way to wirelessly stream iTunes music from a PC or Mac to any room in the house.
As expected, the new Airport Express adds 802.11n networking. The price remains $99 and is available immediately.