Uhhh... I read the link, the site, all the features it does so does iTunes except the older compatibility... not sure the big deal here unless you're running Win98 for some reason (or for that matter, any version of Windoze because quite frankly, get a real computer!)
Most people I know would be running either Win98 or in some cases Win95 since Macs are very expensive in NZ, more so than in the US. This sounds like a useful app for people running the versions of Windows that iTunes doesnt run smoothly on or where they cant afford to upgrade to WinXP (as in a computer upgrade is not high on their financial list of priorites for using MS Word and Email)