Just found what I belive is one of the best yet Wifi sniffer for PocketPc out there....It's called HitchHiker and you could find it at the link below...do a search for it.
Oh....it's FREEEEEEE.
http://www.pocketpcfreeware.com/en/index.php?soft=1052
Let me know what you think.....or if u know of any better.\
et5@nyu.edu