Looks fairly promising to me.  I'm looking forward to trying it out with my own two hands.

There's one thing I'd like to see specifically addressed, and I hope an insider can chime in with some info.  I'm a keyboard user; I go for long periods of time without using the mouse.  In many applications, things that pop up automatically and respond to mouse cursor position never go away if the mouse happens to be too close to them.  I'm concerned that the Floatie will stay in place if it happens to appear underneath my (unused) mouse cursor.  One thing that really steams my pork buns is having to stop what I'm doing to move the mouse cursor so some ill-informed popup goes away.

I'd also like to see a way to pop up and navigate the Floatie from the keyboard, but that's secondary.