This awesome little video shows WP7 running on an emulator at 1280×800 rather than the standard 800×480. Rather than just awkwardly blowing everything up and looking horrifically pixellated, the OS appears to use the space wisely in order to fit more content on the screen.
Watching this, I can’t help but think how perfect the tile-based interface of Metro UI would be on a larger form factor. Man, Microsoft should totally be working on WP7 for tablets rather than a tablet version of Windows 7.
Even though this is a hack, it does show just how easily WP7 could be extended onto a larger screen.