It would be nice if at some point they could fix the bugs with display updating in Word *after setting a new hanging indent, for instance, it almost never updates until one scrolls the area out of sight and scrolls back. In the meantime you might get corruption of the text, if you're lucky, but not the actual results. The corruption tends to affect the hidden character displays as well.
It would also be nice if the office apps would act like every other app in Leopard and support background scrolling *well actually, Word sometimes does but only due to another bug that means you can't for the life of you get Word into the foreground because it thinks it is there already, even to the point of mismatching the menubar with the current app - which is also a big issue with Entourage.
I think the offer of Snow Leopard with iLife and iWork bundled might change things for a few people. It would be nice to have a fresh install without any sign of office:mac, and soon enough rely on Office 2007 on boot camped Windows 7 🙂.