The Nokia D211 is a multimode radio card for your compatible portable computer that enables network access through GPRS, HSCSD, and wireless LAN networks. The Nokia D211 radio card is ideal for busy people on the move.

Key Features: Mobile data
connectivity through GPRS, HSCSD
or wireless LAN, 'always-on'
connection, access to email
and Internet
Wireless connectivity: Up to 40.2
kbit/s in GPRS networks, up to 43.2
kbit/s in HSCSD networks, up to 11
Mbit/s in wireless LAN networks
User Interface: Graphical user
interface, easy-to-use Windows
software.
More info here