Big Screen Mode/TV Mode
This concept is based upon the idea that GNOME current UI shouldn't require much tweaking to keep being usable in the context of a TV appliance. The hypothesis here is that you should be able to boot your GNOME session on a "Big Screen Mode" and use most of GNOME apps with a remote controller (such as a Xbox 360 game controller or an Apple Remote). Of course, not all GNOME apps are relevant on a big screen, but a surprising amount of them - Music, Videos, etc. - could be.
Laurent Pointecouteau (design).
Design in progress
Implementation in progress
Plex Media Center
Steam (Big Picture)
Currently, there aren't much third-party solutions to make your GNOME computer usable on a TV with remote controller. XBMC, which is a popular choice, has some drawbacks : it has to use his own library and doesn't read as much formats as a full GStreamer setup. A GNOME-integrated solution could mean that you'll be able to write an app for the big screen, using only the existing GNOME framework.
Also, a lot of existing 10-foot user interfaces tend to evolve into closed multimedia ecosystems, with integrated stores and digital rights management. This project could opt for another approach, less focused on buying content and more on finding and viewing it.
I think the display of remote button mapping ( (B) Cancel ) etc can be a bit confusing, as it adds quite a bit of visual clutter to the screen, and also because remote controls usually have labels. Developers tend to hack their xbox remote to work with linux, because its easy and they have it at hand, but it creates a terrible user experience as a remote control, as it is designed for gaming. Real dvd player / tv remotes have much better layout for navigation and buttons actually have labels that make sense (Back, Enter etc) - so if this kind of solution would be implemented, it would be nice to support a few good, widely available DVD style generic remotes with good button mapping and have a control panel config for choosing one. Then you wouldnt need to show any button usage hints really. I guess remote controls created for Windows Media Center would be one possibility (search amazon/whatever for "windows media center remote". Remote control support could be useful for presentations and other uses as well. - TuomasKuosmanen