If you watch the video, you'll see the Windows 7 UI pop up when he opens Excel. What he's showing looks like it will be just another layer on top of what we're used to with Windows 7 now.
Which means that for touch systems, this will simply end up like Windows Mobile 6: pretty UIs for touch screen, but as soon as you want to be productive, you need a mouse.
Sorry MS, I would never use what's in that video on my desktop.
You realise that the new tablet UI REPLACES the Start menu and is mapped to the start button right so whenever you click start, that's what pops up? They spelled it out in the AllthingsD/Computex events, and also state as much in the press release.
With pinning/shortcuts, people barely use the "All Programs" part of the Start menu in the current Windows 7, so the only casualty is the start menu Search/Run, which will probably be re-implemented in the new start screen when you start typing on it.
Which means that for touch systems, this will simply end up like Windows Mobile 6: pretty UIs for touch screen, but as soon as you want to be productive, you need a mouse.
Sorry MS, I would never use what's in that video on my desktop.