Some writers at the Dallas Morning News tried out a couple of 802.11g products and ran into a lot of trouble: This story gives a nice glimpse into the experience of a couple of guys without tons of technical experience trying to set up a network. They first noticed incompatabilities between products that were based on the draft standard and those issued after the final standard. They also struggled with implementing WEP and WPA. In fact, they couldn't implement either when installing D-Link gear. They also couldn't implement D-Link's XtremeG upgrade that boosts speed to 108 Mbps.
The Toshiba blue screen of death problem they report could have come from installing the Microsoft Windows XP WPA update on a Toshiba Centrino model. Last time we checked, the Toshiba Centrino wasn't certified to use that update; Intel long ago (May) released a compatibility update to manufacturers for WPA, but each Centrino vendor has to release it separately as part of their driver update package.