At 106 x 55 x 146mm it is a fair bit smaller than a K2 and not that much larger than a KX3 so still eminently portable. In volume it is a good deal smaller than an Icom IC-705.
Sure not the deck of cards size the QMX is but I'd certainly put it in the true /p category. I'll certainly be hiking out into the moors with it.?
And yes, having a bit more board space to work with will be very nice indeed. I enjoy the challenge of building the OG QMX however I'm looking forward to having a bit of room and to be able to do a really nice build :).?