•  Software
  
•  Antennas
  
•  Wireless Cards
  
•  GPS Receivers
  
•  Access Points
  
•  Documentation
  
•  Mapping & Databases
  
•  Bluetooth *New*
  

• Laptop Computer - At least a pentium 100 with a free PCMCIA slot and serial port for GPS.
  
• 802.11b-compliant wireless ethernet card
  
• The Software, Linux, BSD, Windows, Mac, everyone is supported.
  
• Optional: GPS receiver for location tracking.
• A way to get around, a car, bus, subway, walking, bike.
  

Read more about it in the HOWTO.