Wrap Up
With a street price (at time of review) about $20 lower than buying separate 11a and 11b cards, and performance among the best that I've seen in both 11a and 11b products, I'd say that NETGEAR (and everyone else who ends up selling clones of this card) is gonna sell a bunch. Corporate customers, or anyone who needs to cruise between 11a and 11b networks, are just going to find it too good a deal to pass up.
And even though it's more expensive than you'd probably want to pay, if you're having trouble with your 802.11b network range, I'd give the 501 a shot, too!