I'm writing an article for the magazine about iTunes Match, and coincidentally Apple has posted a new instructional video and a list of frequently asked qustions about this new service. You can find both on the iTunes Match page of Apple's website. This service lets you store all of your music in the iCloud so that it's available on all your devices — without having to store your entire collection on all your devices. You can store up to 25,000 songs for a price of $24.99 per year.