Amazon Cloud Drive tacks on file syncing, flexes its digital storage muscle

After nearly a year on the market, Amazon has finally blessed its Cloud Drive apps for Windows and Mac with a file syncing folder. Starting today, users can access their documents, music and photos across multiple computers -- a feature that we've seen from the likes of Google Drive, Dropbox and SkyDrive for quite some time. While this feature is far from groundbreaking, it does manage to make Amazon's service a respectable alternative to cloud storage's reigning heavy hitters. Toss in its 5GB o...