The Box app has just been updated for compatibility with the iPhone 5 and to celebrate, Box is offering some excellent cloud storage deals for new users. When you download and sign in to the free app (starting now, for a limited time), you will get the 10 GB + Sync Box service for free. If you are a new user, that's yours for free, and if you're an existing user with a 5 GB account, you'll get another 5 GB for free as well.
Box not only allows you to save you files on its cloud service, but also lets you make use of the Box API, with lots of different services for various document types and apps. And Box Sync allows you to connect all your documents up together to your desktop computers, so you can access and use them from anywhere. Currently, I use Dropbox quite a bit, but that free service only offers 2 GB of storage, so Box's deal is worth jumping on right now. It's available until October 31, so download the app and sign up as soon as you can.