I wonder if the eyedropper could be implemented such that after I release the mouse, it will revert back to the prvious tool I've been using? While dragging the mouse, it's fine as it is that it keeps picking up the color, it's just once I release it, it would be nice not to click on the previous tool again. I mean...I dunno. You think it's reasonable?
I just find myself sampling only one color, and once I sampled it, I always switch back to the previous tool (or another one) so why not save an extra step? Or maybe just a key that - while holding it - would temporarly switch to the eyedropper so you wouldn't have to mouse back down to the palette again.