The wireless standards wars are over folks, and the winner is 802.11a, 11b and draft-11g! In other words, dual-band tri-mode cards and APs are going to make which standard you use a moot point. Just as with cellular service, a tri-mode card will let you use whatever mode is available, with the only difference being how fast you connect, instead of the voice quality of a phone call.
NETGEAR's WAG511 is a strong entry into what will be a very crowded field that, this time, won't be automatically filled by clones of the same basic reference design. Last time Atheros had the 11a and a / b market all to itself. This time, they'll have to earn their market share from very aggressive competitors.
For now, however, the WAG511 will be replacing the WAB501 as my WLAN card of choice. But whether it remains there is up to its competitors. So if ya got what it takes, guys... bring it on!