It seems the Postman was cruel and didn't deliver many peoples book.. I was lucky enough to go into the store on saturday and get one.
I can't divulge too much, especially as Forgeworld have still to do their FAQ's.. but can confirm the Jet Pack assault bonus exists.
Flyers are in, and they rock.
Warp Hunters are less cheesy now, as centre holes are less important.
Grenades are better.
The overall mechanic is much the same, it has turned toward more realism and has a whole load of rules which I consider 'additional'.. ie, rules for objectives that do things, or scenery that has effects etc. I guess tournaments will decide regarding this additional stuff. It does, however, provide a good basis for adding more narrative to a battle.
I think rangers / pathfinders are a bit more favourable now too, since sniper rules are better.
Anyways.. I'll wait til you've got your books so we can discuss it more thouroughly in regard our Corsairs.
--- Edit --- Hornets now rock, cheap, really fast, Jink, hard to Hit ...and able to pump out glancing shots like nobodys business - they will devastate enemy armour!