For Number 3, have you seen the Magnus Mod on vaporbeast.
I think he's referring more to storage (like maybe in a box mod?) than being able to use 2 at once. i too think that would be an awesome idea, although the magnus is a pretty cool piece in itself. For a good price too!
I'd also like to see (as mentioned before) the chemistry used in high mah 18650's to be used in 18350's and other smaller batteries. If its a little over half the size, i'd like at least half the battery life.
I'm about to drop a big one, not sure if i'm the first to think of this but it'd be incredible and i'd be willing to drop $250+ for it if its ever done
Screen quality, features, and size (maybe even weight) of the Evic, the raw power of a DNA20 or Vamo, a changeable digital/mech setup like the Cyborg, all topped off with an 18650 batt and an ego head that could fit anything from a T2 to a Protank to an RBA.
And a damned pouch to carry it in, and some sort of stand-shaped base (Maybe make it expandable? to keep RBA's upright).
Hell, even throw an alarm clock in there, why not. Maybe make it able to do my laundry..