http://www.betanews.com/article/Longhorn_Gets_a_Name_Windows_Vista/1122002477
Imagine, a Windows product that has been in beta so long that they throw out its codename 17 months before it is even due to ship! Anyone taking bets that this test balloon falls over from high lead content and Microsoft Windows 2006+ (TPFKAL – The Product Formerly Known As Longhorn) gets yet another name? Besides “#$%&@!? Windows,” which is pretty much what every copy gets called, of course.