Received the pack the other day, gave it a quick test run today. It's the same as Chinook220's, but in ACU digicam, and without the extra pouch in his pics.
One of the quick release clips on the inside straps was a bit dodgy - slightly too small, so it wouldn't fit into the other half, but flecktarn were great and are sending me another clip. No big deal either way.
Right, lets get the pics out of the way - the links are to my dropbox account, no malware or any funny business, but I thought it'd be better to use the high res pics:
Front
Back
Innards
I chucked some ballast into it (litre of water, bit of food, large paperback, wallet, baccy, assortment of bits and pieces I use geocaching), and wore it for about 2.5 hours of brisk walking today (warm, sunny, good breeze, mainly on the flat but a bit of uphill/downhill). I haven't got a hydration pouch yet so can't comment there, and I took the waist strap and what look like poncho roll type straps off as they weren't needed.
It performed admirably in its relatively light task - I got a bit sweaty as expected in the sun, but not uncomfortable, no chafing or annoying movement.
What I really like is the clamshell opening, no need to go rummaging around, it opens right up like a suitcase. It's also very configurable, covered in molle, with two large pockets in the main space, two velcro covered ports in the top (left and right, probably for aerials, but for us civvies would be great for hydration tubes or headphone cables), and a middle port for hydration tubes as well.
So overall, long-term heavy use remains to be seen, but for the quick walks I tend to do it's perfect. I hope to give it a more thorough test soon.
Hope this is of use to somebody
Cheers,
Glyn.