Hello from USA. The direct prices are lower than the earlier MSRP, possibly economies of cutting out the middle-man? But they just completed a large long-duration many-products sale of their 2011 range at lower prices than the new 2012 range so they just drained demand from anyone who's been awake to bargains.
Yes, the Jam is tweaked in a nil-weight impact, they've added load-lifters which is puzzling for a frameless pack, and I chuckled to the J.A.M. "Just Add More" name of Goheavy, sorry, GoLite. I bought a Jam and another Peak in their sale in December, and that's me sorted for some years, tough and reasonable value.
I have an unused 2011 Peak in the UK (too small, bought a Jam so it didn't get used) I want to sell but I was competing with lots of sales going on and will re-attempt when none on the sales.