Windows only: Games are best when played full screen, but many won't play nice with Alt+Tab in full screen mode—which means you can't look at your browser for a guide or change the music playing in the background. Borderless Gaming fixes that problem.
Here's a quick look at the freebies built into the 3DS.
What happens to our attention when we play video games? The New York Times' technology reporter Matt Richtel played a video game while stuffed inside a $3 million M.R.I. scanning tube to find out.