> > Apparently, 2.4 and PRO are identical hardware.  Differences are software,
> > as I understand it.  It may be firmare, driver software, or a combination
> > of the two.
> 
> I found a description about the difference in
> 	http://www.world.std.com/~corey/raylink.html
> According to the page, 2.4 supports adhoc mode and PRO supports
> infrastructure mode (only?).

Sorry for confusing, PRO supports both adhoc mode and infrastructure mode,
which is written in www.webgear.com.

Atsushi