Are you salivating over the prospect of an iPad with a Retina Display? If you’re not already, you will be after looking at these screenshots of what a high resolution iPad game might look like.

App developer Kevin Ng made some mockup images of what his upcoming iOS game, “Food Run,” will look like when it’s upscaled for the upcoming iPad’s Retina Display.

How much difference does four times as many pixels make? As it turns out, it’s a huge improvement from current iPad graphics, both in the game and for the app icon on the home screen.

Ng created his game for a possible high resolution iPad screen. The game’s graphics were made with vectors, which means they can scale up to any resolution without a loss of quality (click the image to zoom in).

As you can see, the high definition images look absolutely amazing compared to the regular, current images. They’re much, much sharper and less pixellated, though this will be slightly less noticeable in real life because we don’t play iPad games with our noses touching the screen.

In regards to the home screen, current app icons on the iPad are displayed at 72 by 72 pixels, while on a Retina Display iPad, app icons would have a resolution of 144 by 144 pixels, meaning our home screen’s are going to look fantastic as well. If you had an iPhone 3G or 3GS and upgraded to an iPhone 4, you know how much difference that Retina Display can make.

Games aren’t the only apps that stand to benefit from the increased resolution. All on-screen text will be easier to read and all UI elements will be just a bit crisper. The downside? Apps with four times as many pixels will use more data for video, resulting in larger downloads (I wouldn’t go for the 16GB iPad this time around), and the graphics processor will need to be much faster to display four times the pixels on the screen (cross your fingers for that quad-core processor).

We’ve got less than a week to go before we get to see the official iPad Retina Display, but these images are a great hint at what’s to come. Apple will reveal its next generation iPad on Mach 7th, at 10 a.m. PST.