He means without the several sets of bezels you'd normally have from the normal way of getting this much screen area, i.e., by having several monitors.
How does one handle window placement in a single monitor setup like that? I quite often use Windows' fill right, fill left, maximize, fill height options for window arrangement.
When I got my Seiki I basically tried all of the different Mac Window managers, most of them were immediately out of the running as they couldn't support a large enough grid to make sense (2x2 was the standard).
With Divvy I could set up a 6x6 grid which is perfect as you can easily set global shortcuts to treat it as either a 3x3 grid or a 2x3 grid with your keyboard shortcuts on the Command and Numpad (see image)
http://imgur.com/3E474eP
This is awesome as you don't have to really 'remember' a bunch of shortcuts as the keyboard grids look just like what your screen grids are.
I second the recommendation of Moom; its grid layout can go beyond the 2x2 that most other tools support and its window snapshot restoration is great for laptops.
I use a 39" Seiki with my MacBook, and managing windows is a relatively minor but real annoyance. I just drag and resize manually, and usually end up with overlapping windows of different sizes all over the place. I still love the display and would never go back, but it feels like I'm not using it quite as effectively as I could.
I suspect this is a gap that will be filled pretty quickly once these monitors become more common.
Presumably using a tiling window manager would solve that problem entirely. The window management in Windows/OS X is positively archaic compared to what you can get in Linux these days.
