* this is just a POC.
* It works until you start scrolling, then it turns into a shit show.
* Need to figure some logic for when to do a portscan-- right now
  it's done when the item rolls into view in the listview.  This is
  smart in that you're not scanning things until they show up on screen.
  This is dumb in that if you scroll, a ton of portscans are launched.
* It's also dumb in that as new items pop into the listview, the order
  is no longer preserved and the wrong item gets changed (Reciever needs
  a better way of remembering which item it was scanning than just the
  position, because that changes as new items are listed.  Using the
  view doesn't work either as thyey're recycled on scrolling.  I'm sure
  I just need to think a second and the answer will be obvious.
* No Preferences support.. it always scrolls.
* It probably also crashes easily.  I didn't test much.

thanks to rubenoo

There are still bugs with the feature, but here are the label bits anyway

Eventually will want to do complex animations, but for now, I think
the dissolves make it feel more like a single program rather than
multiple activities sliding in and out.  Makes me less dizzy too.