Amazons Cloud Drive Photos app ranks among the simplest and best ways to back up your mobile photo collection. Today its been updated on iOS with two big features: Cloud Drive Photos now runs natively on the iPad, and it will finally upload videos youve recorded for safekeeping on Amazons servers. Clips up to 20 minutes in length can be backed up (file size is also limited to 2GB), and if you enable auto-upload, Amazon will dig back through your entire iOS camera roll to ensure that all of your content is in the cloud. Sure, Apples own iCloud temporarily stores your photos, but Apple itself has clarified that Photo Stream isnt meant to be a permanent solution.