_wb_ 1GHz unit unboxing

The battery sits much more snugly in my 1GHz unit - it just barely fits, which is of course exactly what you want. On my black Rebirth unit, the battery is quite loose, so I had to add quite a bit of padding or else it would cause a reboot at the slightest shock, e.g. when you drop it on a table from 2cm.

The flyer seems to be extended with information on the other stuff the DragonBox sells - the flyers from FOSDEM 2013 had only information on the Pandora.
I too have a black rebirth and a new 1Ghz and I had happily seen the same difference you noted, but my rebirth came with 2 little sponges at the sides of the battery slot that makes the battery stay firmly in position.