Andrew Skurka came to AK this summer. He teamed up with two PJs and won the Wilderness Classic race.
Meanwhile others out there made this video:
http://www.youtube.com/watch?v=Pjpg2L-HbPA
Takes lightweight to another end. Pack weight for the guys in the video minus food was 10 pounds including packraft and paddle for 175 mile mostly off trail route.

