One of the things I'd like to see is small, very cheap "display strips", which would be simple, battery-operated, wireless displays that you could place around your work (or home) environment and treat as adjunct displays for your main PC desktop.
In other words, you might start some simple apps and drag each of them to a particular "display strip" where they would display information of value to that particular location.
For example, you might put one near your door which would display reminders relevant to when you are walking out the door. Or, have a couple out on your desk that always display specialized information regardless of what you happen to be working on at the time on your main display.
You might even place a few of these around the edge of your monitor, much like the ubiquitous PostIt stickers.
You might even have a "tree" of these displays, each mounted on a flexible branch so that you can arrange them in three dimensions to prioritize them.
I supposed you could also call these "PostIt Displays", but somebody has a trademark there.