Windows 8 now bundles IE 10. Which has a Metro full-screen mode.
Full-screen mode on a web browser is not new; Netscape used to have a "Kiosk" mode which displayed full-screen.

The problem is that displays are much larger than they were then. Back in Netscape's time it was unheard of to have anything larger than 1024*768. With todays resolutions lines of text become unreadably long.

Some of these apps are actually capable of displaying and using local content, such as this video app. It would be a great thing to use to play DVDs. Ironically Microsoft removed the ability to play DVDs in Metro!

Now this is stupid.

If you have a widescreen resolution large enough (IE you have a theater screen for a monitor), Metro graciously allows you to run TWO full-screen apps! Yes, that's right, TWO! No more than two.
Oh please, my old Pentium 120 could have as many as five different windows open at once, and that was on an 800*600 monitor. But you are telling me, that even if I were to have a Core i7-4960x and a theater screen, that I can only have two apps open at once? What?

Even tablets these days are multi-threaded, so I do not understand why you can't have more than two apps on screen at once...oh wait, that's right, tablets are still stuck in the '90s in terms of physical display size (resolution notwithstanding), and this is a tablet OS, not a desktop OS.

It get's better.
I managed to get Windows 8 to run at 800*600. None of the Metro apps will run at such a low resolution.

Go cry me a river! I grew up on a 320*200*16 display, with an intermittent cable AND a brightness knob that was stuck in it's lowest position!

Another keyboard shortcut to remember: Win+C. Or blindly dragging out of the upper right corner. This opens up the "Charms bar", which contains the following buttons:

• Search: Brings up the search utility.
• Share: Certain Metro apps allow you to share data with other Live members. Of course this only applies if you were gullible enough to sign up for a Live account in the first place.
• Start: A redundant button that brings you back to the start page (click on the lower left corner, it does the same thing)
• Devices: Displays a list of attached devices
• Settings: Displays some basic configuration/personalization settings, as well as a few things that aren't settings.

One other thing about these corners: Microsoft didn't think about the people using virtual machines with pointer integration or remote desktop, since under these environments the corners don't actually exist and it becomes tedious to operate these controls since you have to aim over a few pixels near the corner.