While we are currently evaluating a number of cards, the card must support the DSSS standard. Presently, we support the Cisco wireless card and the Apple Airport card. Once the card evaluations are completed, there may be a particular recommendation. The wireless card does use the battery since it is constantly radiating a signal to the access point. No as long as the laptop supports a wireless card.
Portability is the primary benefit.
Wireless technology also eliminates connection cabling for the laptop user. The major disadvantage is a slower connection speed. All platforms that support wireless cards. Presently, we are designing the network so that we will not have more than 20 simultaneous users at one access point. Please see the answer to Question 27 above.