Even if Apple or Google releases their own cloud services, I would still prefer purchasing digital music from Amazon. Interface on iTunes is better and easier to use, but you can't beat Amazon's prices compared to iTunes and is more unrestricted (drag & drop-ready). Buy an album and you get 20 GB for a year. That is solid.
I love when Amazon promoted a $5 giftcard for their movies back in December. Rent or buy. Even if they are DRM, I still got the 1994 cult classic, The Stoned Age, for FREE and that movie still makes me LMAO after not seeing it for years.
Amazon rocks. Great place to buy subsidized phones and memory cards as well.