Khajiit abilities have been nerfed in skyrim and should be improved upon in future games. Their ONLY abilities are
1) Night eye,which is annoying and doesn't really help to see in the dark. It doesn't actually increase the brightness,it just ramps up the contrast. And skyrim is hardly ever never so dark you can't see.
2) An unarmed bonus which is also pretty useless,considering unarmed isn't a viable play style without an unarmed tree.
They don't have any resistances or useful racial abilities,and I really hope this is fixed is later games.