Credit:
In any case, the mobile version of Photoshop (take that with a grain of salt, you can't work on your 100+ layer illustration on your mobile just yet) gives you the ability to upload photos from your phone to your Photoshop account, with 2GB of storage space. You can also access photos from anywhere you are and share them with your friends. There are already dozens of applications that offer this functionality, but I reckon that Photoshop Mobile is probably as good a choice as any.