FrameDisplay allows you to send images, web links, and screen captures from one computer to another. Primary usage is for controlling a TV (with PC connected) as a sophisticated electronic picture frame from your laptop.
*Android/iPhone apps for controlling the FrameDisplay server.
Proof of Concept
One of the purposes of this project is to provide a proof of concept for how "Play To" for DLNA devices could be expanded to include web URLs. Ideally, instead of just being able to tell my DLNA-enabled television to play a movie or show a picture, I could tell it to show a web page. For instance, if you're browsing the web on your computer, you could right-click on the address bar and select "Play To" > "My TV" on the context menu. I'm not part of any group working on DLNA or UPnP, but hopefully, someone associated with one of those groups will see this and run with the idea.
I see the potential for a website/facebook app/live or google service/whatever where you could go and configure a digital dashboard full of widgets where you can specifically arrange them for your 1080p/720p display. Then from your phone or home computer, you could easily toggle your living room TV to show one of your preconfigured dashboards.