mophie has just introduced the mophie space pack; a hybrid iPhone case/charger/storage device. That's right, it's a case with its own battery that you can use to charge your iPhone 5 or iPhone 5s when you're running low, but it also offers extra storage space for your files.
That's up to 16,000 photos, 14 hours worth of movies, 9,000 songs, or a whole lot of document data from email and other online downloads. Data can be managed both through the phone directly and by connecting the mophie space pack to your computer directly. All in a case that will also recharge your phone for you.
The mophie space pack will be available in March for $149.95. Although if you're really impatient you can at least preorder it directly from mophie's website.