As for as i know Longhorn is going to be lauched in end of 2002 or may be start of 2003. But I am really sure that Blackcomb will be release in the mid of 2004. Blackcomb will be the next major release and longhorn is a minor version of XP. But I am not sure about the longhorn. Still as far as i am concerned it is better to wait till we know about the longhorn.
