Libraries have always had their different tactics to keep kids within their walls. Usually those tactics actually involve books though, well now they're tossing in video games like Guitar Hero and “Karaoke”.
They are actually conducting a study involving several libraries throughout the country to see if the video games make kids smarter and increase their literacy. I'm not so sure about all of that, but it can't hurt to draw kids into libraries.
In Tucson the local news did a report on it, so if you follow the link you can hear their thoughts on the program. The study is being done by the American Library Association, hopefully when they're done they will report their findings.