I know the iPhone gives an alert when it reaches a certain amount of free space available (something around 50MB, I think). However, does that mean that until it's down to just 50MB of free space, it should function normally? Or is 60MB just as bad? For that matter, is it just fine with 50MB of free space but will start to malfunction at around 10MB or 20MB of free space? Hoping people could comment on their iPhones behavior with various amounts of free space!