It was that statement which caused us to buy it. However looking at it now, I can see clues that supports what I am seeing.
This one for example:
Operates with standard 802.11b/g/n access point at speed up to11Mbps (802.11b)
The page you reference also claims the "Radio Protocol" is "802.11b/g/n compatible". What exactly is "Radio Protocol"? 802.11x is a specification, not a protocol. Are they saying that since b, g and n all can operate at 2.4 GHz that their b device has the same "radio protocol". They might as well say their device's Radio Protocol was compatible with "802.11b/g/n/bluetooth" devices. Bluetooth also operates ant 2.4 GHz but the wiznet device can't connect to a bluetooth device anymore than it can connect to a 802.11g or 802.11n device. Their documentation is confusing at best and intentionally misleading at worst.