Mountain Hardwear ThruWay 50

David, here is a discussion on that very pack:

http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=59678

Basically the summation of that thread is that nearly everyone is REALLY interested to see how it pans out. It's rare that people on this forum get so excited over a pack from one of the major companies or a pack that isn't made out of cuben fiber. Assuming it lives up to the specs and hype, it should be a great pack.

It looks like MH spent a lot time to add useful features but keep the weight down. I can't afford the pack but am already planning to take some of their design features and incorporate them into a make your own gear pack I have planned for this summer.

You should be happy assuming you can cut your weight to be appropriate for a frameless pack.

My pack showed up today, and I have to say I am very impressed. It is very well built, comfortable, and functional.
The main compartment is very large, as is the exterior pocket.
The hipbelt is super thin, so I ordered up a replacement Alpine hipbelt from MH. It has a lot more padding, and adds 4oz to the pack.
I will try and post some pics this weekend.
My base weight is around 8lbs. This includes my pack, tent, sleeping bag, water filter, and sleeping pad. I am hoping to stay at 20lbs or less. I will be going through my gear this weekend, seeing what I need, what I can live without, etc.