Get all your files, photos, music and movies in one secure spot with no storage limits or file size restrictions. Have the power to share anything with anyone instantly. Play music and movies on any device, anywhere; free your mobile device from storage limits and stream from the cloud.
It's 20GBs for free. Some might find it useful for backing up the contents of their phone, if nothing else. Apps are available for both iOS and Android.
PogoPlug - 20GBs of cloud storage free