Cloning of Famous Domains With Country Extensions

Cloning of worlds most used domains is allmost impossible,but we can try country wise extensions,like (.in,co.in for INDIA).Let take case of YAHOO site ,we know its one of top 3 sites in world by customer usage,here even country wise extension can't be made.
Here DOMAIN MASTERS look for various services of sites ,YAHOO have service called YAHOO MAPS will register domains with country extensions like www.yahoomaps.co.in (See).Layman who don't know exact information is our bread and butter,so always keep that in mind before registering domains.And buy domains when offers or sales going on in country wise extensions.