if u want to know how LongHorn looks,try LongHorn transformation pack available in this month's Digit DVD or download at:-
http://www.freedownloads.be/downloaddetail/531
Also,Longhorn is available throught some P2P clients,this is illegal and the product downloaded should be used at user's own risk.Also,there is no guarantee that downloaded iso/zip/rar/image is really a longhorn or not.