Guys, I just synced my phone and backed it up and strangely I all of a sudden have 10gb more space available!!! And I haven't taken anything off the phone - music, apps, pictures... nothing! What could have happened??? I've checked my pictures and music, and all seems to still be there, but it is hard to check all of them as I have loads of both. I've been struggling for ages with free space so this comes as a positive - so long as some how iTunes hasn't deleted anything from the phone!