It depends on the filesystem/OS. OS X with HFS+ dosen't suffer from fragmation in the same extent that Windows XP with NTFS does. Since iPhone OS is built from OS X I say this is a thing you don't need to worry about.
Fragmentation is not as much of an issue for flash memory as it is for a spinning drive. As a matter of fact, it is recommended defragmentation processes be deactivated when installing ssd drives.
It's flash memory so it doesn't matter. There is no mechanical head that must move to a different area to read. All reads are the same speed no matter were the data is stored in flash memory.
It's flash memory so it doesn't matter. There is no mechanical head that must move to a different area to read. All reads are the same speed no matter were the data is stored in flash memory.
indeed. there would be some sort of write amplification taking place, but i am certain that the firmware of the SSDs should have been upgraded to the point that its all taken care of by the hardware itself. the OS wouldnt have to worry about it.