A monitor can't technically be a SOURCE for HD content...but whatever ;). As far as I know, yes, you can view 1080p content unstreched 1:1 with small black bars at the top and bottom. I haven't been able to test it as of yet, my ATI card doesn't properly support 1:1 timings and my 360 when hooked up via VGA can output at a variety of resolutions (including 1280x720, 1280x768, 1280x1024 and 1360x768) but not 1920x1080. Apparently Microsoft is soon releasing an update to enable naitive 1080p playback, so we'll see.

1080i is also a no go as deinterlacing is apparently not supported on anything but component.

When you run your 360 at 1280x720, does it stretch to fit the whole screen or is it 1:1? Do you have a choice?

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@The Enigmatic wrote:
When you run your 360 at 1280x720, does it stretch to fit the whole screen or is it 1:1? Do you have a choice?

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Yep, you can switch between 1:1, aspect, and fill. 1:1 is not advisable as 1280x720 will be a smaller box in the middle of the screen. Aspect will scale it to fit properly with black bars, and fill will strech. The good thing is it remembers the aspect setting for each input so I'm not having to reset it each time I switch to VGA. There is no reason to think that 1920x1080 wouldn't work that way as well.

That's good. I just can't run normal PC apps fullscreen at for example 1280x720 and get fixed-ratio scaling. I can only get 1:1 for all widescreen resolutions under 1920x1080.

If your looking for a multimedia monitor as a main feature and also can use it with a PC output, also with HDMI and true 1080P aspect, then look at Westinghouse LVM-37W3 37" 1080p.
Read this and compare to Dell's 3007,
Specs:
http://www.westinghousedigital.com/details.aspx?itemnum=56#VALUE

Real reviews thread,
http://www.hardforum.com/showthread.php?t=1088497

XBOX360 would be native at 1080P and 37". That's the big thing with this monitor :)

You won't believe the price, averages $1,200 $1,300 U.S., get an extended warranty, manufacturer is new to LCD game. Nothing on the market today comes close to it under $3,000.00.

No advert just comparison :)

The chip in the 2407 doen't support 1080P will down res to 720P or 1080I so I've read, a lot of mixed info. about that topic here.

Set nVidia to true aspect. Should work, 1600x1200 does.
Anyone else :)