I don't get all the raving about this pack. It basically seems to be a Northern Ireland pack with the sidepockets removed and PLCE side pouch zips & clips attached (a common mod already, makes it far easier to stuff under your bergen lid, and more flexible), covered with MOLLE loops (again, becoming more and more widespread amongst squaddies).
Maybe a bit bigger (floating lid?) for operational loads in Afghanistan and with a guccier shoulder strap, waist belt and back system (but none of those are deal breakers really [padded back system means nothing under body armour!] unless you are going to be carrying ECM and tons of link, in which case I suspect it'll be issued to you for free).
Why all the excitement? NI packs with PLCE zips and clips already exist, MOLLE is on most everything now being produced (look at prevalence of Motherloads and BFMs and the multitude of copies) and larger daysacks with padded straps and belt are hardly revolutionary.
There again I haven't seen it in the flesh, maybe it is good kit, but I just can't understand why a Herrick UOR would be desirable for hiking or mooching round the woods?
Ian