I got Office 2008 in some deal but I haven't actually used it yet, mostly because I haven't needed it (beyond simple word processing, which can be done in TextEdit) and I've been playing around with Creative Suite 3 which I got in the same way. I'm pretty sure Office works pretty well, but that's expected from software that costs $400. Everyone's complaining that in the switch to Universal Binary Microsoft felt it wasn't necessary to port over all the features, so Mac Office 2008 doesn't support VB Macros.
Yeah, Quicktime for the web isn't much of anything anymore. Show some respect for the original digital video, though, and it's a good video player on Macs (at least once you get the Perian plugin). Not everybody has iPods or buys from iTunes, but judging by how many billion songs Apple has sold so far it was probably a good business decision to port iTunes to Windows. I think the touchscreen stuff is handled on the iPhone side, the testing is to make sure it runs without problems in Safari, which the iPhone uses. This will become less of an issue now that there are real third-party apps on the iPhone, but since you have to have a Mac to make those we'll probably still see small Windows-using companies/people using Web apps.
There is actually a new piece of software, or more of a service, that was announced earlier this month to be ported to Windows. Formerly called .mac, now MobileMe, it's a suite of internet-related services that Apple offers for $99 per year. The reason it's coming to Windows is that it now includes some iPhone related features, including the ability to use push mail with your regular e-mail account without an exchange server, and has sophisticated Web App versions of Outlook on the Windows side and Address Book/iCal/Mail for Mac users that you can use on an iPhone. It also includes 20 GB of web space for files you want to access anywhere or web sites, as well as bookmark syncing, which, surprisingly, at least the way I read it, works with Firefox and IE as well as Safari.