

The Operations button in the toolbar opens a window that lists every change that you've requested, and it's updated in real time as you make further changes. All of these changes are non-destructive - when you make them, you're just putting together a plan for iPartition to work with.
IPARTITION CASE INSENSATIVE PLUS
Add one with the plus button in the toolbar. Delete a partition by selecting it and hitting delete. The new size of the partition is always visible and constantly updated. To resize the partition, just grab the small white dot at the end of the extended line, and drag. You select a partition to work with by clicking on it it then slides out from the pie, and gains the markings shown in the image. The iPartition interface is elegantly simple yet very powerful, as seen in the image at left (click the image for the big version).
IPARTITION CASE INSENSATIVE PC
IPartition makes it brain-dead simple to move, delete, add, and resize partitions - without reformatting first! I've used PartitionMagic, and while it's quite good by PC standards, iPartition takes ease of use one big step further. none of which was usable by the system drive, since it was all on the other partitions. I moved all of my non-system and non-user partitions to the new internal drive, leaving a bunch of free space. After some looking around, I decided to replace the second drive with a 300GB Maxtor SATA unit. Anyway, for a while now, my system/user partition had been filling up (less than 5GB free), and my smaller second drive was already bursting at the seams. Yea, I know it's not required and I don't get any speed gain, but it's just the way I prefer to organize things. On my machine, I have a boot/system partition that holds the OS and my user files, and then a bunch of other specialty partitions for things like audio, video, and graphics. and I copied a bunch of stuff to my PowerBook. Make sure you have a backup before trying any program that offers partition resizing! In my case, I had my FireWire backup of the whole system, plus a burned DVD of my critical personal files.

You can lose data if things go wrong, even if the program works perfectly - a power outage while writing changes to the disk would be disastrous. WARNING: Resizing partitions on the fly can be very dangerous.
