In reply to Mr. Lee:
time consuming but at least (usually) forseeable. islamabad is a shit place to wait out weather/military for flights. with briefings now doable in both gilgit and skardu, and 3 or 4 days extra not adding much to a 60 day trip, personally i prefer it (not to mention seeing girls, ordering beer, good internet, better food - all of which extend to some degree into pakistan from the north too).
into pakistan is still almost always a night in tashkorghan (unless you get a 6 seater with some pakistani traders who hire them), and can be a night in hunza too if you take your time crossing the lake. personally i cant pass thru passu without staying a night.
getting out is usually faster (no need to stop in tashkorghan) but unless you go gilgit-sost in the wee hours theres a night spent there.
lots of flights into urumqi now, then onwards to kashgar. or trains, hire vans etc all the way to tashkorghan.
as it goes, i think its the best part of the kkh as well. south of gilgit is really just the warm up.