Pakistan has officially lifted ban on Youtube as confirmed by mainstream media:

BBC: http://news.bbc.co.uk/2/hi/technology/7262071.stm
AFP: http://afp.google.com/article/ALeqM5j9rnIbYBXGhHfNlRcdEOv1SXnQnA
International Herald Tribune: http://www.iht.com/articles/ap/2008/02/26/asia/AS-GEN-Pakistan-YouTube.p...

Pakistan still has to respond to the 2 hour gloabl YouTube outage caused due to misleading IP broadcast by PIE/PTCL resulting in YouTube IP hijacking.