as soon as they get optical in working i'll be running spcmc10s > ps2 > ad20 > iriver.
iriver fw sounded good with that rig, but it was a pain in the arse with no meters, and you had to keep the joystick pressed to avoid glitches.
i would imagine they'll put in a more customisable recording screen at some stage. you can create your own while playing screens at the moment...so surely its not that big of a leap?
I'm personally looking forward to nice big fat meters on the remote (which is about the size of a 9v battery). would be awesome. if it was iriver developing the fw i wouldn't be holding my breath...but the rockbox guys have really proven themselves in my eyes.
They're a fair whack smaller than the jb3 too...a bit shorter than the height of a cd jewel case and about half the width (my unit just happens to be resting on one as a type).
There's a whoooole bunch of refurbed H120s from one guy on ebay atm if you're interested. No relation, but i think someone mentioned he's got 100% feedback.