How to clear up space on 16GB iPad for iOS upgrade? I have an iPad mini 16GB and like to upgrade to iOS 7.0.3. this upgrade wants 1.2GB of free storage. However I only have 0.5 GB at the moment. 

The largest amount of data are my photostreams. They are about 3 GB can I trim them down (without losing any pictures permanently)?
If you have an iCloud account, you can enable Photo stream and sync it to your Mac or PC, then delete them on iPad, and you can upgrade.

BTW iOS 7.0.2 to 7.0.3 OTA only takes less than 1GB of space, so you can just delete some music or apps you don't want.