UPDATE: I JUST INSTALLED THE WIN7 ATI DRIVER AND RAN THE MOBILITY MODDER ON IT AND NOW THE GRAPHICS ARE FULL RESOLUTION AND NO LONGER SAYS "MOBILE PC DISPLAY". NOW I'M OFF TO FURTHER TEST WIN7.
I just tried testing out the new Windows 7 Beta on my 17" HP Laptop. I can't find a graphics driver that would work so I can set it to a higher resolution. Microsoft's automatic search for drivers didn't find the right one. The official driver for X600 Radeon Mobility for Vista for the HP Laptop can be installed but the driver will not initialize. So I was stuck to using Windows "Standard Graphics Adapter" at a very low resolution. I can't work with a low resolution, so I ghosted my old OS back into the Laptop. I'm sure later they will have the correct drivers for the display. There's no way I will install Windows 7 Beta on any of my desktops. Vista is working well for now.