ALASTAIR (CORIOLIS SYSTEMS)  Your reply really only reinforces what I said about you being unreasonable.

As for "smartass replies to e-mail enquiries", if you have a specific instance in mind, by all means contact us and we'll take a look at it. It's very unlikely that the e-mail you received was intended to come across that way.  
(Version 3.0.1)

ALASTAIR (CORIOLIS SYSTEMS)  I'm sorry to hear that you don't like the demo, but it should be obvious to everyone that we can't give away our product and that the kind of demo restrictions people sometimes suggest (like a 30 day time limit) amount to doing just that in the case of disk utility software.

We think the demo is useful because it still lets you see what the software can do; it just doesn't let you repartition your disk.

I'll also add that I think it's extremely unfair of you to give the product a low rating on the basis of what you've written. But I imagine that most people are intelligent enough to figure out for themselves that you're being unreasonable.  
(Version 3.0.1)

ALASTAIR (CORIOLIS SYSTEMS)  This isn't a support forum, so your questions are best directed to us by e-mail, but no you cannot merge partitions at present. It's quite a commonly requested feature, but it's a non-trivial problem to implement for various reasons so I don't think you can expect this any time soon.  
(Version 3.0.1)

ALASTAIR (CORIOLIS SYSTEMS)  Just to make this clear on the main page, it is not true that you can "just use Disk Utility" (or, for that matter, the command line "diskutil" tool). Disk Utility's support for resizing partitions is extremely limited, and as such is only useful in simple cases, where there is no need to move a partition from its current location on the disk, and the partitions you are resizing must be using journaled HFS+ (unlike iPartition, which can resize any sort of HFS+, FAT16, FAT32 and NTFS, and which can move partitions when necessary).

iPartition is a much more comprehensive partitioning tool than that provided in Disk Utility. If Disk Utility does everything you need, by all means use it, but please realise that iPartition can do quite a lot more as well.  
(Version 3.0.1)

ALASTAIR (CORIOLIS SYSTEMS)  Actually that is not true. Disk Utility's support for repartitioning is very limited; it allows you to resize partitions, but it won't let you move them around, which essentially means that it's only good for simple cases.

Also, iPartition supports resizing FAT16, FAT32 and NTFS partitions, including those with Windows on them (e.g. for users of Boot Camp). It can even update the necessary parts of Windows to keep Windows booting after repartitioning, which (it turns out) is very tricky; it's much more than just updating BOOT.INI, and even doing that is beyond a lot of people.

iPartition has plenty of other features that aren't in Disk Utility also.  
(Version 3.0.1)