Metro is broken on the desktop. Here's how I would fix it:
1. Put a search box in the top right hand corner by the user's avatar.
2. Include "shut down" and "restart" options in the menu that pops up in the top right corner when you click on the username.
3. Give every Metro application a big X in the top right hand corner so that Metro applications can be closed more easily.
4. Make it easier to access both the Charm bar and the application switching bar for better multitasking and such.
5. Have the tiles be arranged in such a fashion so that the user scrolls up and down, not left to right.
6. Create defined boundaries between groups of tiles. Every group of tiles should be a page, not a continuous flowing piece that keeps going when you scroll right.
7. For Metro IE10, put the address bar at the top, not the bottom.
8. Make sure that desktop Metro apps still have menus when big productivity apps (like Adobe Premiere, Microsoft Visual Studio) get ported.
9. For the sake of consistency, port over every Windows application over to Metro. That includes the Control Panel, Explorer, etc.
As someone who likes the Metro design language and the direction of Windows 8 in general, I wouldn't call it broken. However, it can certainly do with a few changes, adjustments, tweaks and polish.
1. A search box isn't a bad idea but I'm not quite sure about this one. Universal search is one of Windows 8's strongest points. I think searching by simply typing would be a tic faster. Albeit, a search box only requires a single drag and click.
2. I can certainly go along with this one.
3. I can go along with an "x" in the corner. But, I'm not opposed to closing out the apps by right-clicking the thumbnail in the corner. Though I find myself drag-closing them more than the right-click option
4. I was thinking about this. Maybe dragging the mouse to the bottom of the screen causes these menus to pop up. Or, right-clicking as you do in apps. Perhaps, moving the Charms Bar to the bottom of the screen and Preview Pane to the top. Or, alternatively making the Charms Bar and Preview Pane show by default with the option to Auto-hide them like the current taskbar. In the same vein the All Apps button can go on Preview Pane. It doesn't seem right at the bottom as the sole button there.
5. I definitely don't want to see tiles scrolling up and down. That's cool for my phone but would seem out of place for a computer screen. I get that it would have similar behavior to websites but... I don't know. I think this is all right as is. However, I'd like to see being able to change the colors of tiles and/or specific groups of tiles.
I can find things on my Start Screen easy enough and in the groups I have them in. But, I could see the Work/Productivity group being all red, for example. Entertainment being all green, and so on. Not sure if that really improves anything or not.
6. Not sure if I get you here. There are boundaries/borders between groups. Maybe I'm not understanding what you're saying.
7. I, personally, prefer the bar at the bottom and the option to hide it or keep it showing. Gives me more real estate.
8. I think those apps will have to have some sort of menu. Now, whether that's drop-down or an equally new paradigm as the Metro UI, I don't know. Something similar to the new office 15 apps menus. I could see something like that.
9. I fully agree here. All menus, system tools, accessories, and the desktop need to be Metro-fied. I have a hunch they may be working on this. But, it may be a matter of whether they have the time or not. I hope so.
10. Open desktop programs appear as individual thumbnails in the Preview Pane if you have the desktop snapped. If you click a thumbnail it jumps straight into that app. Which is nice. But, if the desktop is not snapped, only a thumbnail of the desktop shows. What I would like to see is each program that's open in the desktop to show up as individual thumbnails when you bring up the preview pane just like Metro apps. I think this would make multitasking quicker.
I didn't offer my own list so much as I amended yours. Again, I really like 8. Been using it as my main OS since it dropped. That doesn't mean that I don't know some things could use a bit of shine or another coat of paint.
I understand that this is a beta and things will change and I expect them to. If MS makes all of, some of, or none of the changes above, it won't matter for me. As long as the proper polish is put on the OS and the apps are up to snuff with or exceed their mobile counterparts, I'll be good.
Yo ho ho! A Metro life for me. Wait... that didn't come off right.