What is Apple's Cloudy program?

I've been thinking about the Amazon Cloud Drive account. I can get a year free of 20gbs for all my music online.
Sounds like it's worth a try. I don't think even Apple can beat Amazon. My kids live in England and they use Macs. But they never buy from iTunes, they always buy Amazon. They don't use iPhones either. Ipods, yes.
They love their Mac laptops, but the laptops seem to die in 2-3 years like all the rest. The iPods too. Lots of repairs too.
Wayne,